Update to fstobdf version 1.0.6

1 files changed, 3133 insertions, 7192 deletions

diff --git a/app/fstobdf/configure b/app/fstobdf/configure
index bc3b83e34..181136e4f 100644
--- a/app/fstobdf/configure
+++ b/app/fstobdf/configure
@@ -1,20 +1,22 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.62 for fstobdf 1.0.5.
+# Generated by GNU Autoconf 2.69 for fstobdf 1.0.6.
 #
 # Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>.
 #
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
 # This configure script is free software; the Free Software Foundation
 # gives unlimited permission to copy, distribute and modify it.
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -22,23 +24,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -46,7 +40,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -57,7 +57,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -80,13 +80,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -96,15 +89,16 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+as_myself=
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -116,12 +110,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -133,330 +131,346 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-
-# Name of the executable.
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
 # CDPATH.
-$as_unset CDPATH
-
-
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  if (eval ":") 2>/dev/null; then
-  as_have_required=yes
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
 else
-  as_have_required=no
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
 fi
-
-  if test $as_have_required = yes &&	 (eval ":
-(as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
 
 exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
 else
-  exitcode=1
-  echo positional parameters were not saved.
+  as_have_required=no
 fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
 
-test \$exitcode = 0) || { (exit 1); exit 1; }
-
-(
-  as_lineno_1=\$LINENO
-  as_lineno_2=\$LINENO
-  test \"x\$as_lineno_1\" != \"x\$as_lineno_2\" &&
-  test \"x\`expr \$as_lineno_1 + 1\`\" = \"x\$as_lineno_2\") || { (exit 1); exit 1; }
-") 2> /dev/null; then
-  :
 else
-  as_candidate_shells=
-    as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  case $as_dir in
+  as_found=:
+  case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
-	     as_candidate_shells="$as_candidate_shells $as_dir/$as_base"
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
 	   done;;
        esac
+  as_found=false
 done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
 IFS=$as_save_IFS
 
 
-      for as_shell in $as_candidate_shells $SHELL; do
-	 # Try only shells that exist, to save several forks.
-	 if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		{ ("$as_shell") 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-_ASEOF
-}; then
-  CONFIG_SHELL=$as_shell
-	       as_have_required=yes
-	       if { "$as_shell" 2> /dev/null <<\_ASEOF
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
-  emulate sh
-  NULLCMD=:
-  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
-  # is contrary to our usage.  Disable this feature.
-  alias -g '${1+"$@"}'='"$@"'
-  setopt NO_GLOB_SUBST
-else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
-esac
-
-fi
-
-
-:
-(as_func_return () {
-  (exit $1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
-
-exitcode=0
-if as_func_success; then
-  :
-else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
-fi
-
-if as_func_ret_success; then
-  :
-else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
-fi
-
-if ( set x; as_func_ret_success y && test x = "$1" ); then
-  :
-else
-  exitcode=1
-  echo positional parameters were not saved.
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org and
+$0: https://bugs.freedesktop.org/enter_bug.cgi?product=xorg
+$0: about your system, including any error possibly output
+$0: before this message. Then install a modern shell, or
+$0: manually run the script under such a shell if you do
+$0: have one."
+  fi
+  exit 1
 fi
-
-test $exitcode = 0) || { (exit 1); exit 1; }
-
-(
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2") || { (exit 1); exit 1; }
-
-_ASEOF
-}; then
-  break
 fi
-
 fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
 
-      done
-
-      if test "x$CONFIG_SHELL" != x; then
-  for as_var in BASH_ENV ENV
-	do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
-	done
-	export CONFIG_SHELL
-	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
-fi
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
 
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
 
-    if test $as_have_required = no; then
-  echo This script requires a shell more modern than all the
-      echo shells that I found on your system.  Please install a
-      echo modern shell, or manually run the script under such a
-      echo shell if you do have one.
-      { (exit 1); exit 1; }
-fi
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
 
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
 
-fi
 
-fi
+} # as_fn_mkdir_p
 
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
 
 
-(eval "as_func_return () {
-  (exit \$1)
-}
-as_func_success () {
-  as_func_return 0
-}
-as_func_failure () {
-  as_func_return 1
-}
-as_func_ret_success () {
-  return 0
-}
-as_func_ret_failure () {
-  return 1
-}
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
 
-exitcode=0
-if as_func_success; then
-  :
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
 else
-  exitcode=1
-  echo as_func_success failed.
-fi
-
-if as_func_failure; then
-  exitcode=1
-  echo as_func_failure succeeded.
+  as_expr=false
 fi
 
-if as_func_ret_success; then
-  :
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
 else
-  exitcode=1
-  echo as_func_ret_success failed.
-fi
-
-if as_func_ret_failure; then
-  exitcode=1
-  echo as_func_ret_failure succeeded.
+  as_basename=false
 fi
 
-if ( set x; as_func_ret_success y && test x = \"\$1\" ); then
-  :
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
 else
-  exitcode=1
-  echo positional parameters were not saved.
+  as_dirname=false
 fi
 
-test \$exitcode = 0") || {
-  echo No shell found that supports shell functions.
-  echo Please tell bug-autoconf@gnu.org about your system,
-  echo including any error possibly output before this message.
-  echo This can help us improve future autoconf versions.
-  echo Configuration will now proceed without shell functions.
-}
-
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
 
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
 
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
   sed -n '
     p
     /[$]LINENO/=
@@ -473,9 +487,12 @@ test \$exitcode = 0") || {
       s/-\n.*//
     ' >$as_me.lineno &&
   chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
   # Don't try to exec as it changes $[0], causing all sort of problems
   # (the dirname of $[0] is not the place where we might find the
   # original and so on.  Autoconf is especially sensitive to this).
@@ -484,29 +501,18 @@ test \$exitcode = 0") || {
   exit
 }
 
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
-
 ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
+case `echo -n x` in #(((((
 -n*)
-  case `echo 'x\c'` in
+  case `echo 'xy\c'` in
   *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
   esac;;
 *)
   ECHO_N='-n';;
 esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
 
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
@@ -521,49 +527,29 @@ if (echo >conf$$.file) 2>/dev/null; then
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
 
 if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
+  as_mkdir_p='mkdir -p "$as_dir"'
 else
   test -d ./-p && rmdir ./-p
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -572,11 +558,11 @@ as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
 as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
-
-exec 7<&0 </dev/null 6>&1
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
 
 # Name of the host.
-# hostname on some systems (SVR3.2, Linux) returns a bogus exit status,
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
 # so uname gets run too.
 ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
 
@@ -591,15 +577,16 @@ cross_compiling=no
 subdirs=
 MFLAGS=
 MAKEFLAGS=
-SHELL=${CONFIG_SHELL-/bin/sh}
 
 # Identity of this package.
 PACKAGE_NAME='fstobdf'
 PACKAGE_TARNAME='fstobdf'
-PACKAGE_VERSION='1.0.5'
-PACKAGE_STRING='fstobdf 1.0.5'
+PACKAGE_VERSION='1.0.6'
+PACKAGE_STRING='fstobdf 1.0.6'
 PACKAGE_BUGREPORT='https://bugs.freedesktop.org/enter_bug.cgi?product=xorg'
+PACKAGE_URL=''
 
+ac_unique_file="Makefile.am"
 # Factoring default headers for most tests.
 ac_includes_default="\
 #include <stdio.h>
@@ -636,127 +623,135 @@ ac_includes_default="\
 # include <unistd.h>
 #endif"
 
-ac_subst_vars='SHELL
-PATH_SEPARATOR
-PACKAGE_NAME
-PACKAGE_TARNAME
-PACKAGE_VERSION
-PACKAGE_STRING
-PACKAGE_BUGREPORT
-exec_prefix
-prefix
-program_transform_name
-bindir
-sbindir
-libexecdir
-datarootdir
-datadir
-sysconfdir
-sharedstatedir
-localstatedir
-includedir
-oldincludedir
-docdir
-infodir
-htmldir
-dvidir
-pdfdir
-psdir
-libdir
-localedir
-mandir
-DEFS
-ECHO_C
-ECHO_N
-ECHO_T
-LIBS
-build_alias
-host_alias
-target_alias
-INSTALL_PROGRAM
-INSTALL_SCRIPT
-INSTALL_DATA
-CYGPATH_W
-PACKAGE
-VERSION
-ACLOCAL
-AUTOCONF
-AUTOMAKE
-AUTOHEADER
-MAKEINFO
-install_sh
-STRIP
-INSTALL_STRIP_PROGRAM
-mkdir_p
-AWK
-SET_MAKE
-am__leading_dot
-AMTAR
-am__tar
-am__untar
-MAINTAINER_MODE_TRUE
-MAINTAINER_MODE_FALSE
-MAINT
-CC
-CFLAGS
-LDFLAGS
-CPPFLAGS
-ac_ct_CC
-EXEEXT
-OBJEXT
-DEPDIR
-am__include
-am__quote
-AMDEP_TRUE
-AMDEP_FALSE
-AMDEPBACKSLASH
-CCDEPMODE
-am__fastdepCC_TRUE
-am__fastdepCC_FALSE
-CPP
-GREP
-EGREP
-BASE_CFLAGS
-CWARNFLAGS
-STRICT_CFLAGS
-CHANGELOG_CMD
-PKG_CONFIG
-INSTALL_CMD
-build
-build_cpu
-build_vendor
-build_os
-host
-host_cpu
-host_vendor
-host_os
-SED
-APP_MAN_SUFFIX
-LIB_MAN_SUFFIX
-FILE_MAN_SUFFIX
-MISC_MAN_SUFFIX
-DRIVER_MAN_SUFFIX
-ADMIN_MAN_SUFFIX
-APP_MAN_DIR
-LIB_MAN_DIR
-FILE_MAN_DIR
-MISC_MAN_DIR
-DRIVER_MAN_DIR
-ADMIN_MAN_DIR
-XORG_MAN_PAGE
-MAN_SUBSTS
-AM_DEFAULT_VERBOSITY
-FSTOBDF_CFLAGS
-FSTOBDF_LIBS
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
 LIBOBJS
-LTLIBOBJS'
+FSTOBDF_LIBS
+FSTOBDF_CFLAGS
+AM_BACKSLASH
+AM_DEFAULT_VERBOSITY
+AM_DEFAULT_V
+AM_V
+MAN_SUBSTS
+XORG_MAN_PAGE
+ADMIN_MAN_DIR
+DRIVER_MAN_DIR
+MISC_MAN_DIR
+FILE_MAN_DIR
+LIB_MAN_DIR
+APP_MAN_DIR
+ADMIN_MAN_SUFFIX
+DRIVER_MAN_SUFFIX
+MISC_MAN_SUFFIX
+FILE_MAN_SUFFIX
+LIB_MAN_SUFFIX
+APP_MAN_SUFFIX
+SED
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+INSTALL_CMD
+PKG_CONFIG_LIBDIR
+PKG_CONFIG_PATH
+PKG_CONFIG
+CHANGELOG_CMD
+STRICT_CFLAGS
+CWARNFLAGS
+BASE_CFLAGS
+EGREP
+GREP
+CPP
+am__fastdepCC_FALSE
+am__fastdepCC_TRUE
+CCDEPMODE
+am__nodep
+AMDEPBACKSLASH
+AMDEP_FALSE
+AMDEP_TRUE
+am__quote
+am__include
+DEPDIR
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+am__untar
+am__tar
+AMTAR
+am__leading_dot
+SET_MAKE
+AWK
+mkdir_p
+MKDIR_P
+INSTALL_STRIP_PROGRAM
+STRIP
+install_sh
+MAKEINFO
+AUTOHEADER
+AUTOMAKE
+AUTOCONF
+ACLOCAL
+VERSION
+PACKAGE
+CYGPATH_W
+am__isrc
+INSTALL_DATA
+INSTALL_SCRIPT
+INSTALL_PROGRAM
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
-enable_maintainer_mode
 enable_dependency_tracking
 enable_selective_werror
 enable_strict_compilation
+enable_silent_rules
 '
       ac_precious_vars='build_alias
 host_alias
@@ -768,6 +763,8 @@ LIBS
 CPPFLAGS
 CPP
 PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
 FSTOBDF_CFLAGS
 FSTOBDF_LIBS'
 
@@ -832,8 +829,9 @@ do
   fi
 
   case $ac_option in
-  *=*)	ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
-  *)	ac_optarg=yes ;;
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
   esac
 
   # Accept the important Cygnus configure options, so we can diagnose typos.
@@ -878,8 +876,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error $? "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -905,8 +902,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid feature name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error $? "invalid feature name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1110,8 +1106,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error $? "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1127,8 +1122,7 @@ do
     ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
     # Reject names that are not valid shell variable names.
     expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid package name: $ac_useropt" >&2
-   { (exit 1); exit 1; }; }
+      as_fn_error $? "invalid package name: $ac_useropt"
     ac_useropt_orig=$ac_useropt
     ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
     case $ac_user_opts in
@@ -1158,17 +1152,17 @@ do
   | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
     x_libraries=$ac_optarg ;;
 
-  -*) { $as_echo "$as_me: error: unrecognized option: $ac_option
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; }
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
     ;;
 
   *=*)
     ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
     # Reject names that are not valid shell variable names.
-    expr "x$ac_envvar" : ".*[^_$as_cr_alnum]" >/dev/null &&
-      { $as_echo "$as_me: error: invalid variable name: $ac_envvar" >&2
-   { (exit 1); exit 1; }; }
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
     eval $ac_envvar=\$ac_optarg
     export $ac_envvar ;;
 
@@ -1177,7 +1171,7 @@ Try \`$0 --help' for more information." >&2
     $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
       $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
-    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
   esac
@@ -1185,16 +1179,14 @@ done
 
 if test -n "$ac_prev"; then
   ac_option=--`echo $ac_prev | sed 's/_/-/g'`
-  { $as_echo "$as_me: error: missing argument to $ac_option" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "missing argument to $ac_option"
 fi
 
 if test -n "$ac_unrecognized_opts"; then
   case $enable_option_checking in
     no) ;;
-    fatal) { $as_echo "$as_me: error: Unrecognized options: $ac_unrecognized_opts" >&2
-   { (exit 1); exit 1; }; } ;;
-    *)     $as_echo "$as_me: WARNING: Unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
   esac
 fi
 
@@ -1216,8 +1208,7 @@ do
     [\\/$]* | ?:[\\/]* )  continue;;
     NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
   esac
-  { $as_echo "$as_me: error: expected an absolute directory name for --$ac_var: $ac_val" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
 done
 
 # There might be people who depend on the old broken behavior: `$host'
@@ -1231,8 +1222,6 @@ target=$target_alias
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: If you wanted to set the --build type, don't use --host.
-    If a cross compiler is detected then cross compile mode will be used." >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -1247,11 +1236,9 @@ test "$silent" = yes && exec 6>/dev/null
 ac_pwd=`pwd` && test -n "$ac_pwd" &&
 ac_ls_di=`ls -di .` &&
 ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
-  { $as_echo "$as_me: error: Working directory cannot be determined" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "working directory cannot be determined"
 test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
-  { $as_echo "$as_me: error: pwd does not report name of working directory" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "pwd does not report name of working directory"
 
 
 # Find the source files, if location was not specified.
@@ -1290,13 +1277,11 @@ else
 fi
 if test ! -r "$srcdir/$ac_unique_file"; then
   test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
-  { $as_echo "$as_me: error: cannot find sources ($ac_unique_file) in $srcdir" >&2
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
 fi
 ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
 ac_abs_confdir=`(
-	cd "$srcdir" && test -r "./$ac_unique_file" || { $as_echo "$as_me: error: $ac_msg" >&2
-   { (exit 1); exit 1; }; }
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
 	pwd)`
 # When building in place, set srcdir=.
 if test "$ac_abs_confdir" = "$ac_pwd"; then
@@ -1322,7 +1307,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures fstobdf 1.0.5 to adapt to many kinds of systems.
+\`configure' configures fstobdf 1.0.6 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1336,7 +1321,7 @@ Configuration:
       --help=short        display options specific to this package
       --help=recursive    display the short help of all the included packages
   -V, --version           display version information and exit
-  -q, --quiet, --silent   do not print \`checking...' messages
+  -q, --quiet, --silent   do not print \`checking ...' messages
       --cache-file=FILE   cache test results in FILE [disabled]
   -C, --config-cache      alias for \`--cache-file=config.cache'
   -n, --no-create         do not create output files
@@ -1392,7 +1377,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of fstobdf 1.0.5:";;
+     short | recursive ) echo "Configuration of fstobdf 1.0.6:";;
    esac
   cat <<\_ACEOF
 
@@ -1400,16 +1385,18 @@ Optional Features:
   --disable-option-checking  ignore unrecognized --enable/--with options
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
-  --enable-maintainer-mode  enable make rules and dependencies not useful
-			  (and sometimes confusing) to the casual installer
-  --disable-dependency-tracking  speeds up one-time build
-  --enable-dependency-tracking   do not reject slow dependency extractors
+  --enable-dependency-tracking
+                          do not reject slow dependency extractors
+  --disable-dependency-tracking
+                          speeds up one-time build
   --disable-selective-werror
                           Turn off selective compiler errors. (default:
                           enabled)
   --enable-strict-compilation
                           Enable all warnings from compiler and make them
                           errors (default: disabled)
+  --enable-silent-rules   less verbose build output (undo: "make V=1")
+  --disable-silent-rules  verbose build output (undo: "make V=0")
 
 Some influential environment variables:
   CC          C compiler command
@@ -1417,10 +1404,14 @@ Some influential environment variables:
   LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
               nonstandard directory <lib dir>
   LIBS        libraries to pass to the linker, e.g. -l<library>
-  CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
   CPP         C preprocessor
   PKG_CONFIG  path to pkg-config utility
+  PKG_CONFIG_PATH
+              directories to add to pkg-config's search path
+  PKG_CONFIG_LIBDIR
+              path overriding pkg-config's built-in search path
   FSTOBDF_CFLAGS
               C compiler flags for FSTOBDF, overriding pkg-config
   FSTOBDF_LIBS
@@ -1492,22 +1483,265 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-fstobdf configure 1.0.5
-generated by GNU Autoconf 2.62
+fstobdf configure 1.0.6
+generated by GNU Autoconf 2.69
 
-Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
   exit
 fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  as_decl_name=`echo $2|sed 's/ *(.*//'`
+  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+  (void) $as_decl_use;
+#else
+  (void) $as_decl_name;
+#endif
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by fstobdf $as_me 1.0.5, which was
-generated by GNU Autoconf 2.62.  Invocation command line was
+It was created by fstobdf $as_me 1.0.6, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
 
@@ -1543,8 +1777,8 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  $as_echo "PATH: $as_dir"
-done
+    $as_echo "PATH: $as_dir"
+  done
 IFS=$as_save_IFS
 
 } >&5
@@ -1581,9 +1815,9 @@ do
       ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
     case $ac_pass in
-    1) ac_configure_args0="$ac_configure_args0 '$ac_arg'" ;;
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
     2)
-      ac_configure_args1="$ac_configure_args1 '$ac_arg'"
+      as_fn_append ac_configure_args1 " '$ac_arg'"
       if test $ac_must_keep_next = true; then
 	ac_must_keep_next=false # Got value, back to normal.
       else
@@ -1599,13 +1833,13 @@ do
 	  -* ) ac_must_keep_next=true ;;
 	esac
       fi
-      ac_configure_args="$ac_configure_args '$ac_arg'"
+      as_fn_append ac_configure_args " '$ac_arg'"
       ;;
     esac
   done
 done
-$as_unset ac_configure_args0 || test "${ac_configure_args0+set}" != set || { ac_configure_args0=; export ac_configure_args0; }
-$as_unset ac_configure_args1 || test "${ac_configure_args1+set}" != set || { ac_configure_args1=; export ac_configure_args1; }
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
 
 # When interrupted or exit'd, cleanup temporary files, and complete
 # config.log.  We remove comments because anyway the quotes in there
@@ -1617,11 +1851,9 @@ trap 'exit_status=$?
   {
     echo
 
-    cat <<\_ASBOX
-## ---------------- ##
+    $as_echo "## ---------------- ##
 ## Cache variables. ##
-## ---------------- ##
-_ASBOX
+## ---------------- ##"
     echo
     # The following way of writing the cache mishandles newlines in values,
 (
@@ -1630,13 +1862,13 @@ _ASBOX
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:$LINENO: WARNING: Cache variable $ac_var contains a newline." >&5
-$as_echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) $as_unset $ac_var ;;
+      *) { eval $ac_var=; unset $ac_var;} ;;
       esac ;;
     esac
   done
@@ -1655,11 +1887,9 @@ $as_echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
 )
     echo
 
-    cat <<\_ASBOX
-## ----------------- ##
+    $as_echo "## ----------------- ##
 ## Output variables. ##
-## ----------------- ##
-_ASBOX
+## ----------------- ##"
     echo
     for ac_var in $ac_subst_vars
     do
@@ -1672,11 +1902,9 @@ _ASBOX
     echo
 
     if test -n "$ac_subst_files"; then
-      cat <<\_ASBOX
-## ------------------- ##
+      $as_echo "## ------------------- ##
 ## File substitutions. ##
-## ------------------- ##
-_ASBOX
+## ------------------- ##"
       echo
       for ac_var in $ac_subst_files
       do
@@ -1690,11 +1918,9 @@ _ASBOX
     fi
 
     if test -s confdefs.h; then
-      cat <<\_ASBOX
-## ----------- ##
+      $as_echo "## ----------- ##
 ## confdefs.h. ##
-## ----------- ##
-_ASBOX
+## ----------- ##"
       echo
       cat confdefs.h
       echo
@@ -1708,46 +1934,53 @@ _ASBOX
     exit $exit_status
 ' 0
 for ac_signal in 1 2 13 15; do
-  trap 'ac_signal='$ac_signal'; { (exit 1); exit 1; }' $ac_signal
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
 done
 ac_signal=0
 
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
 
+$as_echo "/* confdefs.h */" > confdefs.h
+
 # Predefined preprocessor variables.
 
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_NAME "$PACKAGE_NAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_TARNAME "$PACKAGE_TARNAME"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_VERSION "$PACKAGE_VERSION"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_STRING "$PACKAGE_STRING"
 _ACEOF
 
-
 cat >>confdefs.h <<_ACEOF
 #define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
 _ACEOF
 
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
 
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
 ac_site_file1=NONE
 ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  ac_site_file1=$CONFIG_SITE
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
 elif test "x$prefix" != xNONE; then
   ac_site_file1=$prefix/share/config.site
   ac_site_file2=$prefix/etc/config.site
@@ -1758,19 +1991,23 @@ fi
 for ac_site_file in "$ac_site_file1" "$ac_site_file2"
 do
   test "x$ac_site_file" = xNONE && continue
-  if test -r "$ac_site_file"; then
-    { $as_echo "$as_me:$LINENO: loading site script $ac_site_file" >&5
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
 $as_echo "$as_me: loading site script $ac_site_file" >&6;}
     sed 's/^/| /' "$ac_site_file" >&5
-    . "$ac_site_file"
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
   fi
 done
 
 if test -r "$cache_file"; then
-  # Some versions of bash will fail to source /dev/null (special
-  # files actually), so we avoid doing that.
-  if test -f "$cache_file"; then
-    { $as_echo "$as_me:$LINENO: loading cache $cache_file" >&5
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
 $as_echo "$as_me: loading cache $cache_file" >&6;}
     case $cache_file in
       [\\/]* | ?:[\\/]* ) . "$cache_file";;
@@ -1778,7 +2015,7 @@ $as_echo "$as_me: loading cache $cache_file" >&6;}
     esac
   fi
 else
-  { $as_echo "$as_me:$LINENO: creating cache $cache_file" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
 $as_echo "$as_me: creating cache $cache_file" >&6;}
   >$cache_file
 fi
@@ -1793,11 +2030,11 @@ for ac_var in $ac_precious_vars; do
   eval ac_new_val=\$ac_env_${ac_var}_value
   case $ac_old_set,$ac_new_set in
     set,)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,set)
-      { $as_echo "$as_me:$LINENO: error: \`$ac_var' was not set in the previous run" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
 $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
       ac_cache_corrupted=: ;;
     ,);;
@@ -1807,17 +2044,17 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:$LINENO: error: \`$ac_var' has changed since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
 $as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:$LINENO: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
 $as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:$LINENO:   former value:  \`$ac_old_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
 $as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:$LINENO:   current value: \`$ac_new_val'" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
 $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
       fi;;
   esac
@@ -1829,41 +2066,20 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
     esac
     case " $ac_configure_args " in
       *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
-      *) ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
     esac
   fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:$LINENO: error: changes in the environment can compromise the build" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
 $as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
-  { { $as_echo "$as_me:$LINENO: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&5
-$as_echo "$as_me: error: run \`make distclean' and/or \`rm $cache_file' and start over" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
 fi
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -1872,7 +2088,13 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-am__api_version="1.9"
+
+ac_config_headers="$ac_config_headers config.h"
+
+
+# Initialize Automake
+am__api_version='1.12'
+
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
   if test -f "$ac_dir/install-sh"; then
@@ -1890,9 +2112,7 @@ for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
   fi
 done
 if test -z "$ac_aux_dir"; then
-  { { $as_echo "$as_me:$LINENO: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&5
-$as_echo "$as_me: error: cannot find install-sh or install.sh in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
 fi
 
 # These three variables are undocumented and unsupported,
@@ -1918,10 +2138,10 @@ ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
 # OS/2's system install, which has a completely different semantic
 # ./install, which can be erroneously created by make from ./install.sh.
 # Reject install programs that cannot install multiple files.
-{ $as_echo "$as_me:$LINENO: checking for a BSD-compatible install" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then
+if ${ac_cv_path_install+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -1929,11 +2149,11 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  # Account for people who put trailing slashes in PATH elements.
-case $as_dir/ in
-  ./ | .// | /cC/* | \
+    # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+  ./ | .// | /[cC]/* | \
   /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
-  ?:\\/os2\\/install\\/* | ?:\\/OS2\\/INSTALL\\/* | \
+  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
   /usr/ucb/* ) ;;
   *)
     # OSF1 and SCO ODT 3.0 have their own names for install.
@@ -1941,7 +2161,7 @@ case $as_dir/ in
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
 	  if test $ac_prog = install &&
 	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # AIX install.  It has an incompatible calling convention.
@@ -1970,7 +2190,7 @@ case $as_dir/ in
     ;;
 esac
 
-done
+  done
 IFS=$as_save_IFS
 
 rm -rf conftest.one conftest.two conftest.dir
@@ -1986,7 +2206,7 @@ fi
     INSTALL=$ac_install_sh
   fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $INSTALL" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
 $as_echo "$INSTALL" >&6; }
 
 # Use test -z because SunOS4 sh mishandles braces in ${var-val}.
@@ -1997,6 +2217,73 @@ test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name.  Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+  *[\\\"\#\$\&\'\`$am_lf]*)
+    as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+  *[\\\"\#\$\&\'\`$am_lf\ \	]*)
+    as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments.  Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+   am_has_slept=no
+   for am_try in 1 2; do
+     echo "timestamp, slept: $am_has_slept" > conftest.file
+     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+     if test "$*" = "X"; then
+	# -L didn't work.
+	set X `ls -t "$srcdir/configure" conftest.file`
+     fi
+     if test "$*" != "X $srcdir/configure conftest.file" \
+	&& test "$*" != "X conftest.file $srcdir/configure"; then
+
+	# If neither matched, then we have a broken ls.  This can happen
+	# if, for instance, CONFIG_SHELL is bash and it inherits a
+	# broken ls alias from the environment.  This has actually
+	# happened.  Such a system could not be considered "sane".
+	as_fn_error $? "ls -t appears to fail.  Make sure there is not a broken
+  alias in your environment" "$LINENO" 5
+     fi
+     if test "$2" = conftest.file || test $am_try -eq 2; then
+       break
+     fi
+     # Just in case.
+     sleep 1
+     am_has_slept=yes
+   done
+   test "$2" = conftest.file
+   )
+then
+   # Ok.
+   :
+else
+   as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+  ( sleep 1 ) &
+  am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
 test "$program_prefix" != NONE &&
   program_transform_name="s&^&$program_prefix&;$program_transform_name"
 # Use a double $ so make ignores it.
@@ -2010,56 +2297,181 @@ program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
 # expand $ac_aux_dir to an absolute path
 am_aux_dir=`cd $ac_aux_dir && pwd`
 
-test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
+if test x"${MISSING+set}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+  *)
+    MISSING="\${SHELL} $am_aux_dir/missing" ;;
+  esac
+fi
 # Use eval to expand $SHELL
 if eval "$MISSING --run true"; then
   am_missing_run="$MISSING --run "
 else
   am_missing_run=
-  { $as_echo "$as_me:$LINENO: WARNING: \`missing' script is too old or missing" >&5
-$as_echo "$as_me: WARNING: \`missing' script is too old or missing" >&2;}
-fi
-
-if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
-  # We used to keeping the `.' as first argument, in order to
-  # allow $(mkdir_p) to be used without argument.  As in
-  #   $(mkdir_p) $(somedir)
-  # where $(somedir) is conditionally defined.  However this is wrong
-  # for two reasons:
-  #  1. if the package is installed by a user who cannot write `.'
-  #     make install will fail,
-  #  2. the above comment should most certainly read
-  #     $(mkdir_p) $(DESTDIR)$(somedir)
-  #     so it does not work when $(somedir) is undefined and
-  #     $(DESTDIR) is not.
-  #  To support the latter case, we have to write
-  #     test -z "$(somedir)" || $(mkdir_p) $(DESTDIR)$(somedir),
-  #  so the `.' trick is pointless.
-  mkdir_p='mkdir -p --'
-else
-  # On NextStep and OpenStep, the `mkdir' command does not
-  # recognize any option.  It will interpret all options as
-  # directories to create, and then abort because `.' already
-  # exists.
-  for d in ./-p ./--version;
-  do
-    test -d $d && rmdir $d
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh}" != xset; then
+  case $am_aux_dir in
+  *\ * | *\	*)
+    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+  *)
+    install_sh="\${SHELL} $am_aux_dir/install-sh"
+  esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip".  However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+  if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+  ac_ct_STRIP=$STRIP
+  # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_STRIP"; then
+  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_STRIP="strip"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
   done
-  # $(mkinstalldirs) is defined by Automake if mkinstalldirs exists.
-  if test -f "$ac_aux_dir/mkinstalldirs"; then
-    mkdir_p='$(mkinstalldirs)'
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_STRIP" = x; then
+    STRIP=":"
   else
-    mkdir_p='$(SHELL) $(install_sh) -d'
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    STRIP=$ac_ct_STRIP
   fi
+else
+  STRIP="$ac_cv_prog_STRIP"
+fi
+
 fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+  if ${ac_cv_path_mkdir+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in mkdir gmkdir; do
+	 for ac_exec_ext in '' $ac_executable_extensions; do
+	   as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+	   case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+	     'mkdir (GNU coreutils) '* | \
+	     'mkdir (coreutils) '* | \
+	     'mkdir (fileutils) '4.1*)
+	       ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+	       break 3;;
+	   esac
+	 done
+       done
+  done
+IFS=$as_save_IFS
+
+fi
+
+  test -d ./--version && rmdir ./--version
+  if test "${ac_cv_path_mkdir+set}" = set; then
+    MKDIR_P="$ac_cv_path_mkdir -p"
+  else
+    # As a last resort, use the slow shell script.  Don't cache a
+    # value for MKDIR_P within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the value is a relative name.
+    MKDIR_P="$ac_install_sh -d"
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
 
 for ac_prog in gawk mawk nawk awk
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_AWK+set}" = set; then
+if ${ac_cv_prog_AWK+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$AWK"; then
@@ -2070,24 +2482,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 AWK=$ac_cv_prog_AWK
 if test -n "$AWK"; then
-  { $as_echo "$as_me:$LINENO: result: $AWK" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
 $as_echo "$AWK" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2095,11 +2507,11 @@ fi
   test -n "$AWK" && break
 done
 
-{ $as_echo "$as_me:$LINENO: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
 $as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
 set x ${MAKE-make}
 ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
-if { as_var=ac_cv_prog_make_${ac_make}_set; eval "test \"\${$as_var+set}\" = set"; }; then
+if eval \${ac_cv_prog_make_${ac_make}_set+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat >conftest.make <<\_ACEOF
@@ -2107,7 +2519,7 @@ SHELL = /bin/sh
 all:
 	@echo '@@@%%%=$(MAKE)=@@@%%%'
 _ACEOF
-# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
+# GNU make sometimes prints "make[1]: Entering ...", which would confuse us.
 case `${MAKE-make} -f conftest.make 2>/dev/null` in
   *@@@%%%=?*=@@@%%%*)
     eval ac_cv_prog_make_${ac_make}_set=yes;;
@@ -2117,11 +2529,11 @@ esac
 rm -f conftest.make
 fi
 if eval test \$ac_cv_prog_make_${ac_make}_set = yes; then
-  { $as_echo "$as_me:$LINENO: result: yes" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
   SET_MAKE=
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
   SET_MAKE="MAKE=${MAKE-make}"
 fi
@@ -2135,12 +2547,14 @@ else
 fi
 rmdir .tst 2>/dev/null
 
-# test to see if srcdir already configured
-if test "`cd $srcdir && pwd`" != "`pwd`" &&
-   test -f $srcdir/config.status; then
-  { { $as_echo "$as_me:$LINENO: error: source directory already configured; run \"make distclean\" there first" >&5
-$as_echo "$as_me: error: source directory already configured; run \"make distclean\" there first" >&2;}
-   { (exit 1); exit 1; }; }
+if test "`cd $srcdir && pwd`" != "`pwd`"; then
+  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
+  # is not polluted with repeated "-I."
+  am__isrc=' -I$(srcdir)'
+  # test to see if srcdir already configured
+  if test -f $srcdir/config.status; then
+    as_fn_error $? "source directory already configured; run \"make distclean\" there first" "$LINENO" 5
+  fi
 fi
 
 # test whether we have cygpath
@@ -2155,7 +2569,7 @@ fi
 
 # Define the identity of the package.
  PACKAGE='fstobdf'
- VERSION='1.0.5'
+ VERSION='1.0.6'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -2183,149 +2597,25 @@ AUTOHEADER=${AUTOHEADER-"${am_missing_run}autoheader"}
 
 MAKEINFO=${MAKEINFO-"${am_missing_run}makeinfo"}
 
-install_sh=${install_sh-"$am_aux_dir/install-sh"}
-
-# Installed binaries are usually stripped using `strip' when the user
-# run `make install-strip'.  However `strip' might not be the right
-# tool to use in cross-compilation environments, therefore Automake
-# will honor the `STRIP' environment variable to overrule this program.
-if test "$cross_compiling" != no; then
-  if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
-set dummy ${ac_tool_prefix}strip; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_STRIP+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$STRIP"; then
-  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_STRIP="${ac_tool_prefix}strip"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-STRIP=$ac_cv_prog_STRIP
-if test -n "$STRIP"; then
-  { $as_echo "$as_me:$LINENO: result: $STRIP" >&5
-$as_echo "$STRIP" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_STRIP"; then
-  ac_ct_STRIP=$STRIP
-  # Extract the first word of "strip", so it can be a program name with args.
-set dummy strip; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_STRIP+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_STRIP"; then
-  ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_STRIP="strip"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
-if test -n "$ac_ct_STRIP"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_STRIP" >&5
-$as_echo "$ac_ct_STRIP" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_STRIP" = x; then
-    STRIP=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
-ac_tool_warned=yes ;;
-esac
-    STRIP=$ac_ct_STRIP
-  fi
-else
-  STRIP="$ac_cv_prog_STRIP"
-fi
-
-fi
-INSTALL_STRIP_PROGRAM="\${SHELL} \$(install_sh) -c -s"
+# For better backward compatibility.  To be removed once Automake 1.9.x
+# dies out for good.  For more background, see:
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
+# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
+mkdir_p='$(MKDIR_P)'
 
 # We need awk for the "check" target.  The system "awk" is bad on
 # some platforms.
-# Always define AMTAR for backward compatibility.
+# Always define AMTAR for backward compatibility.  Yes, it's still used
+# in the wild :-(  We should find a proper way to deprecate it ...
+AMTAR='$${TAR-tar}'
 
-AMTAR=${AMTAR-"${am_missing_run}tar"}
+am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'
 
-am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
 
 
 
 
 
-{ $as_echo "$as_me:$LINENO: checking whether to enable maintainer-specific portions of Makefiles" >&5
-$as_echo_n "checking whether to enable maintainer-specific portions of Makefiles... " >&6; }
-    # Check whether --enable-maintainer-mode was given.
-if test "${enable_maintainer_mode+set}" = set; then
-  enableval=$enable_maintainer_mode; USE_MAINTAINER_MODE=$enableval
-else
-  USE_MAINTAINER_MODE=no
-fi
-
-  { $as_echo "$as_me:$LINENO: result: $USE_MAINTAINER_MODE" >&5
-$as_echo "$USE_MAINTAINER_MODE" >&6; }
-
-
-if test $USE_MAINTAINER_MODE = yes; then
-  MAINTAINER_MODE_TRUE=
-  MAINTAINER_MODE_FALSE='#'
-else
-  MAINTAINER_MODE_TRUE='#'
-  MAINTAINER_MODE_FALSE=
-fi
-
-  MAINT=$MAINTAINER_MODE_TRUE
-
-
-
 # Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
 
 
@@ -2346,54 +2636,53 @@ ac_config_commands="$ac_config_commands depfiles"
 am_make=${MAKE-make}
 cat > confinc << 'END'
 am__doit:
-	@echo done
+	@echo this is the am__doit target
 .PHONY: am__doit
 END
 # If we don't find an include directive, just comment out the code.
-{ $as_echo "$as_me:$LINENO: checking for style of include used by $am_make" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for style of include used by $am_make" >&5
 $as_echo_n "checking for style of include used by $am_make... " >&6; }
 am__include="#"
 am__quote=
 _am_result=none
 # First try GNU make style include.
 echo "include confinc" > confmf
-# We grep out `Entering directory' and `Leaving directory'
-# messages which can occur if `w' ends up in MAKEFLAGS.
-# In particular we don't look at `^make:' because GNU make might
-# be invoked under some other name (usually "gmake"), in which
-# case it prints its new name instead of `make'.
-if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
-   am__include=include
-   am__quote=
-   _am_result=GNU
-fi
+# Ignore all kinds of additional output from 'make'.
+case `$am_make -s -f confmf 2> /dev/null` in #(
+*the\ am__doit\ target*)
+  am__include=include
+  am__quote=
+  _am_result=GNU
+  ;;
+esac
 # Now try BSD make style include.
 if test "$am__include" = "#"; then
    echo '.include "confinc"' > confmf
-   if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
-      am__include=.include
-      am__quote="\""
-      _am_result=BSD
-   fi
+   case `$am_make -s -f confmf 2> /dev/null` in #(
+   *the\ am__doit\ target*)
+     am__include=.include
+     am__quote="\""
+     _am_result=BSD
+     ;;
+   esac
 fi
 
 
-{ $as_echo "$as_me:$LINENO: result: $_am_result" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $_am_result" >&5
 $as_echo "$_am_result" >&6; }
 rm -f confinc confmf
 
 # Check whether --enable-dependency-tracking was given.
-if test "${enable_dependency_tracking+set}" = set; then
+if test "${enable_dependency_tracking+set}" = set; then :
   enableval=$enable_dependency_tracking;
 fi
 
 if test "x$enable_dependency_tracking" != xno; then
   am_depcomp="$ac_aux_dir/depcomp"
   AMDEPBACKSLASH='\'
+  am__nodep='_no'
 fi
-
-
-if test "x$enable_dependency_tracking" != xno; then
+ if test "x$enable_dependency_tracking" != xno; then
   AMDEP_TRUE=
   AMDEP_FALSE='#'
 else
@@ -2402,7 +2691,6 @@ else
 fi
 
 
-
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -2411,9 +2699,9 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2424,24 +2712,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2451,9 +2739,9 @@ if test -z "$ac_cv_prog_CC"; then
   ac_ct_CC=$CC
   # Extract the first word of "gcc", so it can be a program name with args.
 set dummy gcc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2464,24 +2752,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2490,12 +2778,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2508,9 +2792,9 @@ if test -z "$CC"; then
           if test -n "$ac_tool_prefix"; then
     # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
 set dummy ${ac_tool_prefix}cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2521,24 +2805,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2548,9 +2832,9 @@ fi
 if test -z "$CC"; then
   # Extract the first word of "cc", so it can be a program name with args.
 set dummy cc; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2562,18 +2846,18 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
      fi
     ac_cv_prog_CC="cc"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 if test $ac_prog_rejected = yes; then
@@ -2592,10 +2876,10 @@ fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2607,9 +2891,9 @@ if test -z "$CC"; then
   do
     # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2620,24 +2904,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 CC=$ac_cv_prog_CC
 if test -n "$CC"; then
-  { $as_echo "$as_me:$LINENO: result: $CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
 $as_echo "$CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2651,9 +2935,9 @@ if test -z "$CC"; then
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2664,24 +2948,24 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
 fi
 fi
 ac_ct_CC=$ac_cv_prog_ac_ct_CC
 if test -n "$ac_ct_CC"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_CC" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
 $as_echo "$ac_ct_CC" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -2694,12 +2978,8 @@ done
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     CC=$ac_ct_CC
@@ -2709,55 +2989,37 @@ fi
 fi
 
 
-test -z "$CC" && { { $as_echo "$as_me:$LINENO: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: no acceptable C compiler found in \$PATH
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
-$as_echo "$as_me:$LINENO: checking for C compiler version" >&5
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
 set X $ac_compile
 ac_compiler=$2
-{ (ac_try="$ac_compiler --version >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler --version >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -v >&5"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -v >&5") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
-{ (ac_try="$ac_compiler -V >&5"
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compiler -V >&5") 2>&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
 
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2773,8 +3035,8 @@ ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
 # Try to create an executable without -o first, disregard a.out.
 # It will help us diagnose broken compilers, and finding out an intuition
 # of exeext.
-{ $as_echo "$as_me:$LINENO: checking for C compiler default output file name" >&5
-$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
 ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
 
 # The possible output files:
@@ -2790,17 +3052,17 @@ do
 done
 rm -f $ac_rmfiles
 
-if { (ac_try="$ac_link_default"
+if { { ac_try="$ac_link_default"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link_default") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
 # So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
 # in a Makefile.  We should not override ac_cv_exeext if it was cached,
@@ -2817,7 +3079,7 @@ do
 	# certainly right.
 	break;;
     *.* )
-        if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
 	then :; else
 	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
 	fi
@@ -2836,80 +3098,41 @@ test "$ac_cv_exeext" = no && ac_cv_exeext=
 else
   ac_file=''
 fi
-
-{ $as_echo "$as_me:$LINENO: result: $ac_file" >&5
-$as_echo "$ac_file" >&6; }
-if test -z "$ac_file"; then
-  $as_echo "$as_me: failed program was:" >&5
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: C compiler cannot create executables
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C compiler cannot create executables
-See \`config.log' for more details." >&2;}
-   { (exit 77); exit 77; }; }
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
 fi
-
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
 ac_exeext=$ac_cv_exeext
 
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether the C compiler works" >&5
-$as_echo_n "checking whether the C compiler works... " >&6; }
-# FIXME: These cross compiler hacks should be removed for Autoconf 3.0
-# If not cross compiling, check that we can run a simple program.
-if test "$cross_compiling" != yes; then
-  if { ac_try='./$ac_file'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-    cross_compiling=no
-  else
-    if test "$cross_compiling" = maybe; then
-	cross_compiling=yes
-    else
-	{ { $as_echo "$as_me:$LINENO: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot run C compiled programs.
-If you meant to cross compile, use \`--host'.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
-    fi
-  fi
-fi
-{ $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
 rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
 ac_clean_files=$ac_clean_files_save
-# Check that the compiler produces executables we can run.  If not, either
-# the compiler is broken, or we cross compile.
-{ $as_echo "$as_me:$LINENO: checking whether we are cross compiling" >&5
-$as_echo_n "checking whether we are cross compiling... " >&6; }
-{ $as_echo "$as_me:$LINENO: result: $cross_compiling" >&5
-$as_echo "$cross_compiling" >&6; }
-
-{ $as_echo "$as_me:$LINENO: checking for suffix of executables" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
 $as_echo_n "checking for suffix of executables... " >&6; }
-if { (ac_try="$ac_link"
+if { { ac_try="$ac_link"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_link") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   # If both `conftest.exe' and `conftest' are `present' (well, observable)
 # catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
 # work properly (i.e., refer to `conftest.exe'), while it won't with
@@ -2924,30 +3147,83 @@ for ac_file in conftest.exe conftest conftest.*; do
   esac
 done
 else
-  { { $as_echo "$as_me:$LINENO: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
 fi
-
-rm -f conftest$ac_cv_exeext
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_exeext" >&5
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
 $as_echo "$ac_cv_exeext" >&6; }
 
 rm -f conftest.$ac_ext
 EXEEXT=$ac_cv_exeext
 ac_exeext=$EXEEXT
-{ $as_echo "$as_me:$LINENO: checking for suffix of object files" >&5
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if test "${ac_cv_objext+set}" = set; then
+if ${ac_cv_objext+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -2959,17 +3235,17 @@ main ()
 }
 _ACEOF
 rm -f conftest.o conftest.obj
-if { (ac_try="$ac_compile"
+if { { ac_try="$ac_compile"
 case "(($ac_try" in
   *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
   *) ac_try_echo=$ac_try;;
 esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
   (eval "$ac_compile") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
   for ac_file in conftest.o conftest.obj conftest.*; do
   test -f "$ac_file" || continue;
   case $ac_file in
@@ -2982,29 +3258,23 @@ else
   $as_echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-{ { $as_echo "$as_me:$LINENO: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: cannot compute suffix of object files: cannot compile
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
 fi
-
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_objext" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
 $as_echo "$ac_cv_objext" >&6; }
 OBJEXT=$ac_cv_objext
 ac_objext=$OBJEXT
-{ $as_echo "$as_me:$LINENO: checking whether we are using the GNU C compiler" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then
+if ${ac_cv_c_compiler_gnu+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3018,37 +3288,16 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_compiler_gnu=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_compiler_gnu=no
+  ac_compiler_gnu=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 ac_cv_c_compiler_gnu=$ac_compiler_gnu
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_c_compiler_gnu" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
 $as_echo "$ac_cv_c_compiler_gnu" >&6; }
 if test $ac_compiler_gnu = yes; then
   GCC=yes
@@ -3057,20 +3306,16 @@ else
 fi
 ac_test_CFLAGS=${CFLAGS+set}
 ac_save_CFLAGS=$CFLAGS
-{ $as_echo "$as_me:$LINENO: checking whether $CC accepts -g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then
+if ${ac_cv_prog_cc_g+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
    ac_c_werror_flag=yes
    ac_cv_prog_cc_g=no
    CFLAGS="-g"
-   cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3081,35 +3326,11 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	CFLAGS=""
-      cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3120,36 +3341,12 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_compile "$LINENO"; then :
 
-	ac_c_werror_flag=$ac_save_c_werror_flag
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
 	 CFLAGS="-g"
-	 cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
 int
@@ -3160,42 +3357,17 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_g=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    ac_c_werror_flag=$ac_save_c_werror_flag
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_g" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
 $as_echo "$ac_cv_prog_cc_g" >&6; }
 if test "$ac_test_CFLAGS" = set; then
   CFLAGS=$ac_save_CFLAGS
@@ -3212,23 +3384,18 @@ else
     CFLAGS=
   fi
 fi
-{ $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C89" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then
+if ${ac_cv_prog_cc_c89+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
 ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+struct stat;
 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 struct buf { int x; };
 FILE * (*rcsopen) (struct buf *, struct stat *, int);
@@ -3280,32 +3447,9 @@ for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
 	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 do
   CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+  if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_c89=$ac_arg
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext
   test "x$ac_cv_prog_cc_c89" != "xno" && break
 done
@@ -3316,17 +3460,19 @@ fi
 # AC_CACHE_VAL
 case "x$ac_cv_prog_cc_c89" in
   x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 $as_echo "none needed" >&6; } ;;
   xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 $as_echo "unsupported" >&6; } ;;
   *)
     CC="$CC $ac_cv_prog_cc_c89"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c89" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
 $as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
 esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
 
+fi
 
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -3336,17 +3482,18 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 depcc="$CC"   am_compiler_list=
 
-{ $as_echo "$as_me:$LINENO: checking dependency style of $depcc" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
 $as_echo_n "checking dependency style of $depcc... " >&6; }
-if test "${am_cv_CC_dependencies_compiler_type+set}" = set; then
+if ${am_cv_CC_dependencies_compiler_type+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
   # We make a subdir and do the tests there.  Otherwise we can end up
   # making bogus files that we don't know about and never remove.  For
   # instance it was reported that on HP-UX the gcc test will end up
-  # making a dummy file named `D' -- because `-MD' means `put the output
-  # in D'.
+  # making a dummy file named 'D' -- because '-MD' means "put the output
+  # in D".
+  rm -rf conftest.dir
   mkdir conftest.dir
   # Copy depcomp to subdir because otherwise we won't find it if we're
   # using a relative directory.
@@ -3364,6 +3511,11 @@ else
   if test "$am_compiler_list" = ""; then
      am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
   fi
+  am__universal=false
+  case " $depcc " in #(
+     *\ -arch\ *\ -arch\ *) am__universal=true ;;
+     esac
+
   for depmode in $am_compiler_list; do
     # Setup a source with many dependencies, because some compilers
     # like to wrap large dependency lists on column 80 (with \), and
@@ -3375,34 +3527,49 @@ else
     : > sub/conftest.c
     for i in 1 2 3 4 5 6; do
       echo '#include "conftst'$i'.h"' >> sub/conftest.c
-      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
-      # Solaris 8's {/usr,}/bin/sh.
-      touch sub/conftst$i.h
+      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+      # Solaris 10 /bin/sh.
+      echo '/* dummy */' > sub/conftst$i.h
     done
     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 
+    # We check with '-c' and '-o' for the sake of the "dashmstdout"
+    # mode.  It turns out that the SunPro C++ compiler does not properly
+    # handle '-M -o', and we need to detect this.  Also, some Intel
+    # versions had trouble with output in subdirs.
+    am__obj=sub/conftest.${OBJEXT-o}
+    am__minus_obj="-o $am__obj"
     case $depmode in
+    gcc)
+      # This depmode causes a compiler race in universal mode.
+      test "$am__universal" = false || continue
+      ;;
     nosideeffect)
-      # after this tag, mechanisms are not by side-effect, so they'll
-      # only be used when explicitly requested
+      # After this tag, mechanisms are not by side-effect, so they'll
+      # only be used when explicitly requested.
       if test "x$enable_dependency_tracking" = xyes; then
 	continue
       else
 	break
       fi
       ;;
+    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+      # This compiler won't grok '-c -o', but also, the minuso test has
+      # not run yet.  These depmodes are late enough in the game, and
+      # so weak that their functioning should not be impacted.
+      am__obj=conftest.${OBJEXT-o}
+      am__minus_obj=
+      ;;
     none) break ;;
     esac
-    # We check with `-c' and `-o' for the sake of the "dashmstdout"
-    # mode.  It turns out that the SunPro C++ compiler does not properly
-    # handle `-M -o', and we need to detect this.
     if depmode=$depmode \
-       source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
+       source=sub/conftest.c object=$am__obj \
        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
-       $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
+       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
          >/dev/null 2>conftest.err &&
+       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
-       grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
+       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
       # icc doesn't choke on unknown options, it will just issue warnings
       # or remarks (even with -Werror).  So we grep stderr for any message
@@ -3426,13 +3593,11 @@ else
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $am_cv_CC_dependencies_compiler_type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CC_dependencies_compiler_type" >&5
 $as_echo "$am_cv_CC_dependencies_compiler_type" >&6; }
 CCDEPMODE=depmode=$am_cv_CC_dependencies_compiler_type
 
-
-
-if
+ if
   test "x$enable_dependency_tracking" != xno \
   && test "$am_cv_CC_dependencies_compiler_type" = gcc3; then
   am__fastdepCC_TRUE=
@@ -3443,18 +3608,14 @@ else
 fi
 
 
-   { $as_echo "$as_me:$LINENO: checking for $CC option to accept ISO C99" >&5
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5
 $as_echo_n "checking for $CC option to accept ISO C99... " >&6; }
-if test "${ac_cv_prog_cc_c99+set}" = set; then
+if ${ac_cv_prog_cc_c99+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c99=no
 ac_save_CC=$CC
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdbool.h>
@@ -3593,35 +3754,12 @@ main ()
   return 0;
 }
 _ACEOF
-for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -xc99=all -qlanglvl=extc99
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99
 do
   CC="$ac_save_CC $ac_arg"
-  rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+  if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_prog_cc_c99=$ac_arg
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-
 fi
-
 rm -f core conftest.err conftest.$ac_objext
   test "x$ac_cv_prog_cc_c99" != "xno" && break
 done
@@ -3632,17 +3770,19 @@ fi
 # AC_CACHE_VAL
 case "x$ac_cv_prog_cc_c99" in
   x)
-    { $as_echo "$as_me:$LINENO: result: none needed" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
 $as_echo "none needed" >&6; } ;;
   xno)
-    { $as_echo "$as_me:$LINENO: result: unsupported" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
 $as_echo "unsupported" >&6; } ;;
   *)
     CC="$CC $ac_cv_prog_cc_c99"
-    { $as_echo "$as_me:$LINENO: result: $ac_cv_prog_cc_c99" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
 $as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
 esac
+if test "x$ac_cv_prog_cc_c99" != xno; then :
 
+fi
 
 
 
@@ -3651,14 +3791,14 @@ ac_cpp='$CPP $CPPFLAGS'
 ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
-{ $as_echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
 $as_echo_n "checking how to run the C preprocessor... " >&6; }
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
 fi
 if test -z "$CPP"; then
-  if test "${ac_cv_prog_CPP+set}" = set; then
+  if ${ac_cv_prog_CPP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
       # Double quotes because CPP needs to be expanded
@@ -3673,11 +3813,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -3686,78 +3822,34 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_c_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
   break
 fi
 
@@ -3769,7 +3861,7 @@ fi
 else
   ac_cv_prog_CPP=$CPP
 fi
-{ $as_echo "$as_me:$LINENO: result: $CPP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
 $as_echo "$CPP" >&6; }
 ac_preproc_ok=false
 for ac_c_preproc_warn_flag in '' yes
@@ -3780,11 +3872,7 @@ do
   # <limits.h> exists even on freestanding compilers.
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp. "Syntax error" is here to catch this case.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #ifdef __STDC__
 # include <limits.h>
@@ -3793,85 +3881,40 @@ cat >>conftest.$ac_ext <<_ACEOF
 #endif
 		     Syntax error
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
-  :
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_cpp "$LINENO"; then :
 
+else
   # Broken: fails on valid input.
 continue
 fi
-
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
   # OK, works on sane cases.  Now check whether nonexistent headers
   # can be detected and how.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ac_nonexistent.h>
 _ACEOF
-if { (ac_try="$ac_cpp conftest.$ac_ext"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } >/dev/null && {
-	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       }; then
+if ac_fn_c_try_cpp "$LINENO"; then :
   # Broken: success on invalid input.
 continue
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
   # Passes both tests.
 ac_preproc_ok=:
 break
 fi
-
-rm -f conftest.err conftest.$ac_ext
+rm -f conftest.err conftest.i conftest.$ac_ext
 
 done
 # Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
-rm -f conftest.err conftest.$ac_ext
-if $ac_preproc_ok; then
-  :
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
 else
-  { { $as_echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 
 ac_ext=c
@@ -3881,9 +3924,9 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-{ $as_echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
 $as_echo_n "checking for grep that handles long lines and -e... " >&6; }
-if test "${ac_cv_path_GREP+set}" = set; then
+if ${ac_cv_path_GREP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -z "$GREP"; then
@@ -3894,10 +3937,10 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in grep ggrep; do
+    for ac_prog in grep ggrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+      as_fn_executable_p "$ac_path_GREP" || continue
 # Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
 case `"$ac_path_GREP" --version 2>&1` in
@@ -3914,7 +3957,7 @@ case `"$ac_path_GREP" --version 2>&1` in
     $as_echo 'GREP' >> "conftest.nl"
     "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_GREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_GREP="$ac_path_GREP"
@@ -3929,26 +3972,24 @@ esac
       $ac_path_GREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_GREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_GREP=$GREP
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_GREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
 $as_echo "$ac_cv_path_GREP" >&6; }
  GREP="$ac_cv_path_GREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for egrep" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
 $as_echo_n "checking for egrep... " >&6; }
-if test "${ac_cv_path_EGREP+set}" = set; then
+if ${ac_cv_path_EGREP+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
@@ -3962,10 +4003,10 @@ for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in egrep; do
+    for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+      as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
 case `"$ac_path_EGREP" --version 2>&1` in
@@ -3982,7 +4023,7 @@ case `"$ac_path_EGREP" --version 2>&1` in
     $as_echo 'EGREP' >> "conftest.nl"
     "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_EGREP_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_EGREP="$ac_path_EGREP"
@@ -3997,12 +4038,10 @@ esac
       $ac_path_EGREP_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_EGREP"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&5
-$as_echo "$as_me: error: no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
   fi
 else
   ac_cv_path_EGREP=$EGREP
@@ -4010,21 +4049,17 @@ fi
 
    fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_EGREP" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
 $as_echo "$ac_cv_path_EGREP" >&6; }
  EGREP="$ac_cv_path_EGREP"
 
 
-{ $as_echo "$as_me:$LINENO: checking for ANSI C header files" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
 $as_echo_n "checking for ANSI C header files... " >&6; }
-if test "${ac_cv_header_stdc+set}" = set; then
+if ${ac_cv_header_stdc+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 #include <stdarg.h>
@@ -4039,48 +4074,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   ac_cv_header_stdc=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_header_stdc=no
+  ac_cv_header_stdc=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <string.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "memchr" >/dev/null 2>&1; then
-  :
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -4090,18 +4100,14 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdlib.h>
 
 _ACEOF
 if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "free" >/dev/null 2>&1; then
-  :
+  $EGREP "free" >/dev/null 2>&1; then :
+
 else
   ac_cv_header_stdc=no
 fi
@@ -4111,14 +4117,10 @@ fi
 
 if test $ac_cv_header_stdc = yes; then
   # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
-  if test "$cross_compiling" = yes; then
+  if test "$cross_compiling" = yes; then :
   :
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <ctype.h>
 #include <stdlib.h>
@@ -4145,117 +4147,33 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_try") 2>&5
-  ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  :
-else
-  $as_echo "$as_me: program exited with status $ac_status" >&5
-$as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+if ac_fn_c_try_run "$LINENO"; then :
 
-( exit $ac_status )
-ac_cv_header_stdc=no
+else
+  ac_cv_header_stdc=no
 fi
-rm -rf conftest.dSYM
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
 fi
 
-
 fi
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
 $as_echo "$ac_cv_header_stdc" >&6; }
 if test $ac_cv_header_stdc = yes; then
 
-cat >>confdefs.h <<\_ACEOF
-#define STDC_HEADERS 1
-_ACEOF
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
 
 fi
 
 # On IRIX 5.3, sys/types and inttypes.h are conflicting.
-
-
-
-
-
-
-
-
-
 for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
 		  inttypes.h stdint.h unistd.h
-do
-as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
-{ $as_echo "$as_me:$LINENO: checking for $ac_header" >&5
-$as_echo_n "checking for $ac_header... " >&6; }
-if { as_var=$as_ac_Header; eval "test \"\${$as_var+set}\" = set"; }; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  eval "$as_ac_Header=yes"
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval "$as_ac_Header=no"
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-ac_res=`eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'`
-	       { $as_echo "$as_me:$LINENO: result: $ac_res" >&5
-$as_echo "$ac_res" >&6; }
-if test `eval 'as_val=${'$as_ac_Header'}
-		 $as_echo "$as_val"'` = yes; then
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
   cat >>confdefs.h <<_ACEOF
 #define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
 _ACEOF
@@ -4269,178 +4187,22 @@ done
 
 
 
-{ $as_echo "$as_me:$LINENO: checking whether __clang__ is declared" >&5
-$as_echo_n "checking whether __clang__ is declared... " >&6; }
-if test "${ac_cv_have_decl___clang__+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-#ifndef __clang__
-  (void) __clang__;
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___clang__=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_have_decl___clang__=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___clang__" >&5
-$as_echo "$ac_cv_have_decl___clang__" >&6; }
-if test $ac_cv_have_decl___clang__ = yes; then
+ac_fn_c_check_decl "$LINENO" "__clang__" "ac_cv_have_decl___clang__" "$ac_includes_default"
+if test "x$ac_cv_have_decl___clang__" = xyes; then :
   CLANGCC="yes"
 else
   CLANGCC="no"
 fi
 
-{ $as_echo "$as_me:$LINENO: checking whether __INTEL_COMPILER is declared" >&5
-$as_echo_n "checking whether __INTEL_COMPILER is declared... " >&6; }
-if test "${ac_cv_have_decl___INTEL_COMPILER+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-#ifndef __INTEL_COMPILER
-  (void) __INTEL_COMPILER;
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___INTEL_COMPILER=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_have_decl___INTEL_COMPILER=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___INTEL_COMPILER" >&5
-$as_echo "$ac_cv_have_decl___INTEL_COMPILER" >&6; }
-if test $ac_cv_have_decl___INTEL_COMPILER = yes; then
+ac_fn_c_check_decl "$LINENO" "__INTEL_COMPILER" "ac_cv_have_decl___INTEL_COMPILER" "$ac_includes_default"
+if test "x$ac_cv_have_decl___INTEL_COMPILER" = xyes; then :
   INTELCC="yes"
 else
   INTELCC="no"
 fi
 
-{ $as_echo "$as_me:$LINENO: checking whether __SUNPRO_C is declared" >&5
-$as_echo_n "checking whether __SUNPRO_C is declared... " >&6; }
-if test "${ac_cv_have_decl___SUNPRO_C+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main ()
-{
-#ifndef __SUNPRO_C
-  (void) __SUNPRO_C;
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  ac_cv_have_decl___SUNPRO_C=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_cv_have_decl___SUNPRO_C=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_have_decl___SUNPRO_C" >&5
-$as_echo "$ac_cv_have_decl___SUNPRO_C" >&6; }
-if test $ac_cv_have_decl___SUNPRO_C = yes; then
+ac_fn_c_check_decl "$LINENO" "__SUNPRO_C" "ac_cv_have_decl___SUNPRO_C" "$ac_includes_default"
+if test "x$ac_cv_have_decl___SUNPRO_C" = xyes; then :
   SUNCC="yes"
 else
   SUNCC="no"
@@ -4449,13 +4211,18 @@ fi
 
 
 
+
+
+
+
+
 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
 set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $PKG_CONFIG in
@@ -4468,14 +4235,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4483,10 +4250,10 @@ esac
 fi
 PKG_CONFIG=$ac_cv_path_PKG_CONFIG
 if test -n "$PKG_CONFIG"; then
-  { $as_echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
 $as_echo "$PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4496,9 +4263,9 @@ if test -z "$ac_cv_path_PKG_CONFIG"; then
   ac_pt_PKG_CONFIG=$PKG_CONFIG
   # Extract the first word of "pkg-config", so it can be a program name with args.
 set dummy pkg-config; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
+if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   case $ac_pt_PKG_CONFIG in
@@ -4511,14 +4278,14 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
   fi
 done
-done
+  done
 IFS=$as_save_IFS
 
   ;;
@@ -4526,10 +4293,10 @@ esac
 fi
 ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
 if test -n "$ac_pt_PKG_CONFIG"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
 $as_echo "$ac_pt_PKG_CONFIG" >&6; }
 else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 fi
 
@@ -4538,12 +4305,8 @@ fi
   else
     case $cross_compiling:$ac_tool_warned in
 yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&5
-$as_echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
-whose name does not start with the host triplet.  If you think this
-configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
 ac_tool_warned=yes ;;
 esac
     PKG_CONFIG=$ac_pt_PKG_CONFIG
@@ -4555,49 +4318,40 @@ fi
 fi
 if test -n "$PKG_CONFIG"; then
 	_pkg_min_version=0.9.0
-	{ $as_echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
 $as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
 	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		{ $as_echo "$as_me:$LINENO: result: yes" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
 	else
-		{ $as_echo "$as_me:$LINENO: result: no" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
 $as_echo "no" >&6; }
 		PKG_CONFIG=""
 	fi
-
 fi
 # Make sure we can run config.sub.
 $SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
-  { { $as_echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
-$as_echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
 
-{ $as_echo "$as_me:$LINENO: checking build system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then
+if ${ac_cv_build+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_build_alias=$build_alias
 test "x$ac_build_alias" = x &&
   ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
 test "x$ac_build_alias" = x &&
-  { { $as_echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
-$as_echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
 ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
-  { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
-$as_echo "$as_me: error: invalid value of canonical build" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -4613,28 +4367,24 @@ IFS=$ac_save_IFS
 case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:$LINENO: checking host system type" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
 $as_echo_n "checking host system type... " >&6; }
-if test "${ac_cv_host+set}" = set; then
+if ${ac_cv_host+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test "x$host_alias" = x; then
   ac_cv_host=$ac_cv_build
 else
   ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
-    { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
-$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
 $as_echo "$ac_cv_host" >&6; }
 case $ac_cv_host in
 *-*-*) ;;
-*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
-$as_echo "$as_me: error: invalid value of canonical host" >&2;}
-   { (exit 1); exit 1; }; };;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
 esac
 host=$ac_cv_host
 ac_save_IFS=$IFS; IFS='-'
@@ -4650,9 +4400,9 @@ IFS=$ac_save_IFS
 case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
 
 
-{ $as_echo "$as_me:$LINENO: checking for a sed that does not truncate output" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
 $as_echo_n "checking for a sed that does not truncate output... " >&6; }
-if test "${ac_cv_path_SED+set}" = set; then
+if ${ac_cv_path_SED+:} false; then :
   $as_echo_n "(cached) " >&6
 else
             ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
@@ -4660,7 +4410,7 @@ else
        ac_script="$ac_script$as_nl$ac_script"
      done
      echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
-     $as_unset ac_script || ac_script=
+     { ac_script=; unset ac_script;}
      if test -z "$SED"; then
   ac_path_SED_found=false
   # Loop through the user's path and test for each of PROGNAME-LIST
@@ -4669,10 +4419,10 @@ for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  for ac_prog in sed gsed; do
+    for ac_prog in sed gsed; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
+      as_fn_executable_p "$ac_path_SED" || continue
 # Check for GNU ac_path_SED and select it if it is found.
   # Check for GNU $ac_path_SED
 case `"$ac_path_SED" --version 2>&1` in
@@ -4689,7 +4439,7 @@ case `"$ac_path_SED" --version 2>&1` in
     $as_echo '' >> "conftest.nl"
     "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
     diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
-    ac_count=`expr $ac_count + 1`
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
     if test $ac_count -gt ${ac_path_SED_max-0}; then
       # Best one so far, save it but keep looking for a better one
       ac_cv_path_SED="$ac_path_SED"
@@ -4704,19 +4454,17 @@ esac
       $ac_path_SED_found && break 3
     done
   done
-done
+  done
 IFS=$as_save_IFS
   if test -z "$ac_cv_path_SED"; then
-    { { $as_echo "$as_me:$LINENO: error: no acceptable sed could be found in \$PATH" >&5
-$as_echo "$as_me: error: no acceptable sed could be found in \$PATH" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
   fi
 else
   ac_cv_path_SED=$SED
 fi
 
 fi
-{ $as_echo "$as_me:$LINENO: result: $ac_cv_path_SED" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
 $as_echo "$ac_cv_path_SED" >&6; }
  SED="$ac_cv_path_SED"
   rm -f conftest.sed
@@ -4727,7 +4475,7 @@ $as_echo "$ac_cv_path_SED" >&6; }
 
 
 # Check whether --enable-selective-werror was given.
-if test "${enable_selective_werror+set}" = set; then
+if test "${enable_selective_werror+set}" = set; then :
   enableval=$enable_selective_werror; SELECTIVE_WERROR=$enableval
 else
   SELECTIVE_WERROR=yes
@@ -4762,48 +4510,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -4814,48 +4537,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -4864,27 +4562,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wall"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wall" >&5
-$as_echo_n "checking if $CC supports-Wall... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wall" >&5
+$as_echo_n "checking if $CC supports -Wall... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wall
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -4895,45 +4589,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wall"
@@ -4959,48 +4628,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5011,48 +4655,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5061,27 +4680,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wpointer-arith"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wpointer-arith" >&5
-$as_echo_n "checking if $CC supports-Wpointer-arith... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wpointer-arith" >&5
+$as_echo_n "checking if $CC supports -Wpointer-arith... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wpointer_arith
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5092,45 +4707,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wpointer-arith"
@@ -5156,48 +4746,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5208,48 +4773,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5258,27 +4798,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmissing-declarations"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmissing-declarations" >&5
-$as_echo_n "checking if $CC supports-Wmissing-declarations... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-declarations" >&5
+$as_echo_n "checking if $CC supports -Wmissing-declarations... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmissing_declarations
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5289,45 +4825,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-declarations"
@@ -5353,48 +4864,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5405,48 +4891,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5455,27 +4916,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wformat=2"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wformat=2" >&5
-$as_echo_n "checking if $CC supports-Wformat=2... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wformat=2" >&5
+$as_echo_n "checking if $CC supports -Wformat=2... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wformat_2
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5486,45 +4943,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wformat=2"
@@ -5533,27 +4965,23 @@ $as_echo "$supported" >&6; }
 	fi
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wformat"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wformat" >&5
-$as_echo_n "checking if $CC supports-Wformat... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wformat" >&5
+$as_echo_n "checking if $CC supports -Wformat... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wformat
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5564,45 +4992,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wformat"
@@ -5630,48 +5033,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5682,48 +5060,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5732,27 +5085,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wstrict-prototypes"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wstrict-prototypes" >&5
-$as_echo_n "checking if $CC supports-Wstrict-prototypes... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wstrict-prototypes" >&5
+$as_echo_n "checking if $CC supports -Wstrict-prototypes... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wstrict_prototypes
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5763,45 +5112,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wstrict-prototypes"
@@ -5827,48 +5151,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5879,48 +5178,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -5929,27 +5203,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmissing-prototypes"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmissing-prototypes" >&5
-$as_echo_n "checking if $CC supports-Wmissing-prototypes... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-prototypes" >&5
+$as_echo_n "checking if $CC supports -Wmissing-prototypes... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmissing_prototypes
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -5960,45 +5230,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-prototypes"
@@ -6024,48 +5269,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6076,48 +5296,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6126,27 +5321,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wnested-externs"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wnested-externs" >&5
-$as_echo_n "checking if $CC supports-Wnested-externs... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wnested-externs" >&5
+$as_echo_n "checking if $CC supports -Wnested-externs... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wnested_externs
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -6157,45 +5348,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wnested-externs"
@@ -6221,48 +5387,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6273,48 +5414,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6323,27 +5439,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wbad-function-cast"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wbad-function-cast" >&5
-$as_echo_n "checking if $CC supports-Wbad-function-cast... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wbad-function-cast" >&5
+$as_echo_n "checking if $CC supports -Wbad-function-cast... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wbad_function_cast
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -6354,45 +5466,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wbad-function-cast"
@@ -6418,48 +5505,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6470,48 +5532,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6520,27 +5557,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wold-style-definition"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wold-style-definition" >&5
-$as_echo_n "checking if $CC supports-Wold-style-definition... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wold-style-definition" >&5
+$as_echo_n "checking if $CC supports -Wold-style-definition... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wold_style_definition
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -6551,45 +5584,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wold-style-definition"
@@ -6597,147 +5605,24 @@ $as_echo "$supported" >&6; }
 		fi
 	fi
 
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-xorg_testset_save_CFLAGS="$CFLAGS"
-
-if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
-	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
-$as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-int i;
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  xorg_cv_cc_flag_unknown_warning_option=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
-$as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
-	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
-	CFLAGS="$xorg_testset_save_CFLAGS"
-fi
-
-if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
-	if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
-		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	fi
-	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
-$as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-int i;
-_ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
-  xorg_cv_cc_flag_unused_command_line_argument=yes
-else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
-fi
-
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
-$as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
-	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
-	CFLAGS="$xorg_testset_save_CFLAGS"
-fi
-
-found="no"
-
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wdeclaration-after-statement"
+		CFLAGS="$CFLAGS -fd"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wdeclaration-after-statement" >&5
-$as_echo_n "checking if $CC supports-Wdeclaration-after-statement... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wdeclaration_after_statement
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -fd" >&5
+$as_echo_n "checking if $CC supports -fd... " >&6; }
+		cacheid=xorg_cv_cc_flag__fd
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -6748,48 +5633,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wdeclaration-after-statement"
+			BASE_CFLAGS="$BASE_CFLAGS -fd"
 			found="yes"
 		fi
 	fi
@@ -6798,10 +5658,6 @@ $as_echo "$supported" >&6; }
 
 
 
-# This chunk adds additional warnings that could catch undesired effects.
-
-
-
 
 
 
@@ -6816,48 +5672,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6868,48 +5699,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -6918,27 +5724,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wunused"
+		CFLAGS="$CFLAGS -Wdeclaration-after-statement"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wunused" >&5
-$as_echo_n "checking if $CC supports-Wunused... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wunused
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wdeclaration-after-statement" >&5
+$as_echo_n "checking if $CC supports -Wdeclaration-after-statement... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wdeclaration_after_statement
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -6949,48 +5751,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wunused"
+			BASE_CFLAGS="$BASE_CFLAGS -Wdeclaration-after-statement"
 			found="yes"
 		fi
 	fi
@@ -6999,6 +5776,10 @@ $as_echo "$supported" >&6; }
 
 
 
+# This chunk adds additional warnings that could catch undesired effects.
+
+
+
 
 
 
@@ -7013,48 +5794,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7065,48 +5821,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7115,27 +5846,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wuninitialized"
+		CFLAGS="$CFLAGS -Wunused"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wuninitialized" >&5
-$as_echo_n "checking if $CC supports-Wuninitialized... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wuninitialized
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wunused" >&5
+$as_echo_n "checking if $CC supports -Wunused... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wunused
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -7146,48 +5873,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wuninitialized"
+			BASE_CFLAGS="$BASE_CFLAGS -Wunused"
 			found="yes"
 		fi
 	fi
@@ -7210,48 +5912,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7262,48 +5939,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7312,27 +5964,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wshadow"
+		CFLAGS="$CFLAGS -Wuninitialized"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wshadow" >&5
-$as_echo_n "checking if $CC supports-Wshadow... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wshadow
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wuninitialized" >&5
+$as_echo_n "checking if $CC supports -Wuninitialized... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wuninitialized
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -7343,48 +5991,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wshadow"
+			BASE_CFLAGS="$BASE_CFLAGS -Wuninitialized"
 			found="yes"
 		fi
 	fi
@@ -7407,48 +6030,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7459,48 +6057,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7509,27 +6082,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wcast-qual"
+		CFLAGS="$CFLAGS -Wshadow"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wcast-qual" >&5
-$as_echo_n "checking if $CC supports-Wcast-qual... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wcast_qual
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wshadow" >&5
+$as_echo_n "checking if $CC supports -Wshadow... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wshadow
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -7540,48 +6109,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wcast-qual"
+			BASE_CFLAGS="$BASE_CFLAGS -Wshadow"
 			found="yes"
 		fi
 	fi
@@ -7604,48 +6148,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7656,48 +6175,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7706,27 +6200,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmissing-noreturn"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmissing-noreturn" >&5
-$as_echo_n "checking if $CC supports-Wmissing-noreturn... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-noreturn" >&5
+$as_echo_n "checking if $CC supports -Wmissing-noreturn... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmissing_noreturn
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -7737,45 +6227,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-noreturn"
@@ -7801,48 +6266,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7853,48 +6293,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -7903,27 +6318,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmissing-format-attribute"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmissing-format-attribute" >&5
-$as_echo_n "checking if $CC supports-Wmissing-format-attribute... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-format-attribute" >&5
+$as_echo_n "checking if $CC supports -Wmissing-format-attribute... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmissing_format_attribute
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -7934,45 +6345,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-format-attribute"
@@ -7981,6 +6367,7 @@ $as_echo "$supported" >&6; }
 	fi
 
 
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wredundant-decls])
 
 
 
@@ -7998,48 +6385,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8050,48 +6412,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8100,27 +6437,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
-		CFLAGS="$CFLAGS -Wredundant-decls"
+		CFLAGS="$CFLAGS -Wlogical-op"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wredundant-decls" >&5
-$as_echo_n "checking if $CC supports-Wredundant-decls... " >&6; }
-		cacheid=xorg_cv_cc_flag__Wredundant_decls
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wlogical-op" >&5
+$as_echo_n "checking if $CC supports -Wlogical-op... " >&6; }
+		cacheid=xorg_cv_cc_flag__Wlogical_op
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -8131,48 +6464,23 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
-			BASE_CFLAGS="$BASE_CFLAGS -Wredundant-decls"
+			BASE_CFLAGS="$BASE_CFLAGS -Wlogical-op"
 			found="yes"
 		fi
 	fi
@@ -8182,9 +6490,9 @@ $as_echo "$supported" >&6; }
 # These are currently disabled because they are noisy.  They will be enabled
 # in the future once the codebase is sufficiently modernized to silence
 # them.  For now, I don't want them to drown out the other warnings.
-# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wlogical-op])
 # XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wparentheses])
 # XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-align])
+# XORG_TESTSET_CFLAG([[BASE_]PREFIX[FLAGS]], [-Wcast-qual])
 
 # Turn some warnings into errors, so we don't accidently get successful builds
 # when there are problems that should be fixed.
@@ -8207,48 +6515,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8259,48 +6542,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8309,27 +6567,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=implicit"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=implicit" >&5
-$as_echo_n "checking if $CC supports-Werror=implicit... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=implicit" >&5
+$as_echo_n "checking if $CC supports -Werror=implicit... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_implicit
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -8340,45 +6594,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=implicit"
@@ -8387,27 +6616,23 @@ $as_echo "$supported" >&6; }
 	fi
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED" >&5
-$as_echo_n "checking if $CC supports-errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED... " >&6; }
 		cacheid=xorg_cv_cc_flag__errwarn_E_NO_EXPLICIT_TYPE_GIVEN__errwarn_E_NO_IMPLICIT_DECL_ALLOWED
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -8418,45 +6643,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_NO_EXPLICIT_TYPE_GIVEN -errwarn=E_NO_IMPLICIT_DECL_ALLOWED"
@@ -8482,48 +6682,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8534,48 +6709,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8584,27 +6734,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=nonnull"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=nonnull" >&5
-$as_echo_n "checking if $CC supports-Werror=nonnull... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=nonnull" >&5
+$as_echo_n "checking if $CC supports -Werror=nonnull... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_nonnull
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -8615,45 +6761,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=nonnull"
@@ -8679,48 +6800,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8731,48 +6827,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8781,27 +6852,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=init-self"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=init-self" >&5
-$as_echo_n "checking if $CC supports-Werror=init-self... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=init-self" >&5
+$as_echo_n "checking if $CC supports -Werror=init-self... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_init_self
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -8812,45 +6879,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=init-self"
@@ -8876,48 +6918,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8928,48 +6945,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -8978,27 +6970,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=main"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=main" >&5
-$as_echo_n "checking if $CC supports-Werror=main... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=main" >&5
+$as_echo_n "checking if $CC supports -Werror=main... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_main
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9009,45 +6997,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=main"
@@ -9073,48 +7036,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9125,48 +7063,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9175,27 +7088,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=missing-braces"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=missing-braces" >&5
-$as_echo_n "checking if $CC supports-Werror=missing-braces... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=missing-braces" >&5
+$as_echo_n "checking if $CC supports -Werror=missing-braces... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_missing_braces
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9206,45 +7115,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=missing-braces"
@@ -9270,48 +7154,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9322,48 +7181,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9372,27 +7206,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=sequence-point"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=sequence-point" >&5
-$as_echo_n "checking if $CC supports-Werror=sequence-point... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=sequence-point" >&5
+$as_echo_n "checking if $CC supports -Werror=sequence-point... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_sequence_point
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9403,45 +7233,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=sequence-point"
@@ -9467,48 +7272,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9519,48 +7299,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9569,27 +7324,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=return-type"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=return-type" >&5
-$as_echo_n "checking if $CC supports-Werror=return-type... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=return-type" >&5
+$as_echo_n "checking if $CC supports -Werror=return-type... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_return_type
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9600,45 +7351,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=return-type"
@@ -9647,27 +7373,23 @@ $as_echo "$supported" >&6; }
 	fi
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -errwarn=E_FUNC_HAS_NO_RETURN_STMT"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-errwarn=E_FUNC_HAS_NO_RETURN_STMT" >&5
-$as_echo_n "checking if $CC supports-errwarn=E_FUNC_HAS_NO_RETURN_STMT... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_FUNC_HAS_NO_RETURN_STMT" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_FUNC_HAS_NO_RETURN_STMT... " >&6; }
 		cacheid=xorg_cv_cc_flag__errwarn_E_FUNC_HAS_NO_RETURN_STMT
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9678,45 +7400,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_FUNC_HAS_NO_RETURN_STMT"
@@ -9742,48 +7439,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9794,48 +7466,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9844,27 +7491,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=trigraphs"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=trigraphs" >&5
-$as_echo_n "checking if $CC supports-Werror=trigraphs... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=trigraphs" >&5
+$as_echo_n "checking if $CC supports -Werror=trigraphs... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_trigraphs
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -9875,45 +7518,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=trigraphs"
@@ -9939,48 +7557,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -9991,48 +7584,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10041,27 +7609,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=array-bounds"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=array-bounds" >&5
-$as_echo_n "checking if $CC supports-Werror=array-bounds... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=array-bounds" >&5
+$as_echo_n "checking if $CC supports -Werror=array-bounds... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_array_bounds
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10072,45 +7636,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=array-bounds"
@@ -10136,48 +7675,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10188,48 +7702,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10238,27 +7727,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=write-strings"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=write-strings" >&5
-$as_echo_n "checking if $CC supports-Werror=write-strings... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=write-strings" >&5
+$as_echo_n "checking if $CC supports -Werror=write-strings... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_write_strings
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10269,45 +7754,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=write-strings"
@@ -10333,48 +7793,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10385,48 +7820,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10435,27 +7845,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=address"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=address" >&5
-$as_echo_n "checking if $CC supports-Werror=address... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=address" >&5
+$as_echo_n "checking if $CC supports -Werror=address... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_address
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10466,45 +7872,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=address"
@@ -10530,48 +7911,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10582,48 +7938,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10632,27 +7963,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=int-to-pointer-cast"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=int-to-pointer-cast" >&5
-$as_echo_n "checking if $CC supports-Werror=int-to-pointer-cast... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=int-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports -Werror=int-to-pointer-cast... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_int_to_pointer_cast
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10663,45 +7990,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=int-to-pointer-cast"
@@ -10710,27 +8012,23 @@ $as_echo "$supported" >&6; }
 	fi
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -errwarn=E_BAD_PTR_INT_COMBINATION"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-errwarn=E_BAD_PTR_INT_COMBINATION" >&5
-$as_echo_n "checking if $CC supports-errwarn=E_BAD_PTR_INT_COMBINATION... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn=E_BAD_PTR_INT_COMBINATION" >&5
+$as_echo_n "checking if $CC supports -errwarn=E_BAD_PTR_INT_COMBINATION... " >&6; }
 		cacheid=xorg_cv_cc_flag__errwarn_E_BAD_PTR_INT_COMBINATION
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10741,45 +8039,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -errwarn=E_BAD_PTR_INT_COMBINATION"
@@ -10805,48 +8078,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10857,48 +8105,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -10907,27 +8130,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=pointer-to-int-cast"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=pointer-to-int-cast" >&5
-$as_echo_n "checking if $CC supports-Werror=pointer-to-int-cast... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=pointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports -Werror=pointer-to-int-cast... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_pointer_to_int_cast
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -10938,45 +8157,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Werror=pointer-to-int-cast"
@@ -10986,7 +8180,7 @@ $as_echo "$supported" >&6; }
 
  # Also -errwarn=E_BAD_PTR_INT_COMBINATION
 else
-{ $as_echo "$as_me:$LINENO: WARNING: You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT" >&5
 $as_echo "$as_me: WARNING: You have chosen not to turn some select compiler warnings into errors.  This should not be necessary.  Please report why you needed to do so in a bug report at $PACKAGE_BUGREPORT" >&2;}
 
 
@@ -11005,48 +8199,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11057,48 +8226,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11107,27 +8251,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wimplicit"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wimplicit" >&5
-$as_echo_n "checking if $CC supports-Wimplicit... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wimplicit" >&5
+$as_echo_n "checking if $CC supports -Wimplicit... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wimplicit
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -11138,45 +8278,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wimplicit"
@@ -11202,48 +8317,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11254,48 +8344,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11304,27 +8369,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wnonnull"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wnonnull" >&5
-$as_echo_n "checking if $CC supports-Wnonnull... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wnonnull" >&5
+$as_echo_n "checking if $CC supports -Wnonnull... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wnonnull
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -11335,45 +8396,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wnonnull"
@@ -11399,48 +8435,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11451,48 +8462,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11501,27 +8487,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Winit-self"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Winit-self" >&5
-$as_echo_n "checking if $CC supports-Winit-self... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Winit-self" >&5
+$as_echo_n "checking if $CC supports -Winit-self... " >&6; }
 		cacheid=xorg_cv_cc_flag__Winit_self
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -11532,45 +8514,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Winit-self"
@@ -11596,48 +8553,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11648,48 +8580,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11698,27 +8605,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmain"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmain" >&5
-$as_echo_n "checking if $CC supports-Wmain... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmain" >&5
+$as_echo_n "checking if $CC supports -Wmain... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmain
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -11729,45 +8632,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmain"
@@ -11793,48 +8671,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11845,48 +8698,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -11895,27 +8723,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wmissing-braces"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wmissing-braces" >&5
-$as_echo_n "checking if $CC supports-Wmissing-braces... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wmissing-braces" >&5
+$as_echo_n "checking if $CC supports -Wmissing-braces... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wmissing_braces
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -11926,45 +8750,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wmissing-braces"
@@ -11990,48 +8789,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12042,48 +8816,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12092,27 +8841,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wsequence-point"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wsequence-point" >&5
-$as_echo_n "checking if $CC supports-Wsequence-point... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wsequence-point" >&5
+$as_echo_n "checking if $CC supports -Wsequence-point... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wsequence_point
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -12123,45 +8868,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wsequence-point"
@@ -12187,48 +8907,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12239,48 +8934,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12289,27 +8959,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wreturn-type"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wreturn-type" >&5
-$as_echo_n "checking if $CC supports-Wreturn-type... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wreturn-type" >&5
+$as_echo_n "checking if $CC supports -Wreturn-type... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wreturn_type
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -12320,45 +8986,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wreturn-type"
@@ -12384,48 +9025,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12436,48 +9052,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12486,27 +9077,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wtrigraphs"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wtrigraphs" >&5
-$as_echo_n "checking if $CC supports-Wtrigraphs... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wtrigraphs" >&5
+$as_echo_n "checking if $CC supports -Wtrigraphs... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wtrigraphs
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -12517,45 +9104,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wtrigraphs"
@@ -12581,48 +9143,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12633,48 +9170,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12683,27 +9195,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Warray-bounds"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Warray-bounds" >&5
-$as_echo_n "checking if $CC supports-Warray-bounds... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Warray-bounds" >&5
+$as_echo_n "checking if $CC supports -Warray-bounds... " >&6; }
 		cacheid=xorg_cv_cc_flag__Warray_bounds
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -12714,45 +9222,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Warray-bounds"
@@ -12778,48 +9261,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12830,48 +9288,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -12880,27 +9313,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wwrite-strings"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wwrite-strings" >&5
-$as_echo_n "checking if $CC supports-Wwrite-strings... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wwrite-strings" >&5
+$as_echo_n "checking if $CC supports -Wwrite-strings... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wwrite_strings
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -12911,45 +9340,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wwrite-strings"
@@ -12975,48 +9379,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13027,48 +9406,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13077,27 +9431,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Waddress"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Waddress" >&5
-$as_echo_n "checking if $CC supports-Waddress... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Waddress" >&5
+$as_echo_n "checking if $CC supports -Waddress... " >&6; }
 		cacheid=xorg_cv_cc_flag__Waddress
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -13108,45 +9458,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Waddress"
@@ -13172,48 +9497,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13224,48 +9524,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13274,27 +9549,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wint-to-pointer-cast"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wint-to-pointer-cast" >&5
-$as_echo_n "checking if $CC supports-Wint-to-pointer-cast... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wint-to-pointer-cast" >&5
+$as_echo_n "checking if $CC supports -Wint-to-pointer-cast... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wint_to_pointer_cast
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -13305,45 +9576,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wint-to-pointer-cast"
@@ -13369,48 +9615,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13421,48 +9642,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13471,27 +9667,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Wpointer-to-int-cast"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Wpointer-to-int-cast" >&5
-$as_echo_n "checking if $CC supports-Wpointer-to-int-cast... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Wpointer-to-int-cast" >&5
+$as_echo_n "checking if $CC supports -Wpointer-to-int-cast... " >&6; }
 		cacheid=xorg_cv_cc_flag__Wpointer_to_int_cast
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -13502,45 +9694,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			BASE_CFLAGS="$BASE_CFLAGS -Wpointer-to-int-cast"
@@ -13570,7 +9737,7 @@ fi
 
 
 # Check whether --enable-strict-compilation was given.
-if test "${enable_strict_compilation+set}" = set; then
+if test "${enable_strict_compilation+set}" = set; then :
   enableval=$enable_strict_compilation; STRICT_COMPILE=$enableval
 else
   STRICT_COMPILE=no
@@ -13599,48 +9766,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13651,48 +9793,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13701,27 +9818,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -pedantic"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-pedantic" >&5
-$as_echo_n "checking if $CC supports-pedantic... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -pedantic" >&5
+$as_echo_n "checking if $CC supports -pedantic... " >&6; }
 		cacheid=xorg_cv_cc_flag__pedantic
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -13732,45 +9845,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			STRICT_CFLAGS="$STRICT_CFLAGS -pedantic"
@@ -13796,48 +9884,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13848,48 +9911,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -13898,27 +9936,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror" >&5
-$as_echo_n "checking if $CC supports-Werror... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror" >&5
+$as_echo_n "checking if $CC supports -Werror... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -13929,45 +9963,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			STRICT_CFLAGS="$STRICT_CFLAGS -Werror"
@@ -13976,27 +9985,23 @@ $as_echo "$supported" >&6; }
 	fi
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -errwarn"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-errwarn" >&5
-$as_echo_n "checking if $CC supports-errwarn... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -errwarn" >&5
+$as_echo_n "checking if $CC supports -errwarn... " >&6; }
 		cacheid=xorg_cv_cc_flag__errwarn
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -14007,45 +10012,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			STRICT_CFLAGS="$STRICT_CFLAGS -errwarn"
@@ -14074,48 +10054,23 @@ xorg_testset_save_CFLAGS="$CFLAGS"
 
 if test "x$xorg_testset_cc_unknown_warning_option" = "x" ; then
 	CFLAGS="$CFLAGS -Werror=unknown-warning-option"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unknown-warning-option" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unknown-warning-option" >&5
 $as_echo_n "checking if $CC supports -Werror=unknown-warning-option... " >&6; }
-if test "${xorg_cv_cc_flag_unknown_warning_option+set}" = set; then
+if ${xorg_cv_cc_flag_unknown_warning_option+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unknown_warning_option=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unknown_warning_option=no
+  xorg_cv_cc_flag_unknown_warning_option=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unknown_warning_option" >&5
 $as_echo "$xorg_cv_cc_flag_unknown_warning_option" >&6; }
 	xorg_testset_cc_unknown_warning_option=$xorg_cv_cc_flag_unknown_warning_option
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -14126,48 +10081,23 @@ if test "x$xorg_testset_cc_unused_command_line_argument" = "x" ; then
 		CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 	fi
 	CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
-	{ $as_echo "$as_me:$LINENO: checking if $CC supports -Werror=unused-command-line-argument" >&5
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=unused-command-line-argument" >&5
 $as_echo_n "checking if $CC supports -Werror=unused-command-line-argument... " >&6; }
-if test "${xorg_cv_cc_flag_unused_command_line_argument+set}" = set; then
+if ${xorg_cv_cc_flag_unused_command_line_argument+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 _ACEOF
-rm -f conftest.$ac_objext
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
+if ac_fn_c_try_compile "$LINENO"; then :
   xorg_cv_cc_flag_unused_command_line_argument=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	xorg_cv_cc_flag_unused_command_line_argument=no
+  xorg_cv_cc_flag_unused_command_line_argument=no
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $xorg_cv_cc_flag_unused_command_line_argument" >&5
 $as_echo "$xorg_cv_cc_flag_unused_command_line_argument" >&6; }
 	xorg_testset_cc_unused_command_line_argument=$xorg_cv_cc_flag_unused_command_line_argument
 	CFLAGS="$xorg_testset_save_CFLAGS"
@@ -14176,27 +10106,23 @@ fi
 found="no"
 
 	if test $found = "no" ; then
-		if test "x$xorg_testset_unknown_warning_option" = "xyes" ; then
+		if test "x$xorg_testset_cc_unknown_warning_option" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unknown-warning-option"
 		fi
 
-		if test "x$xorg_testset_unused_command_line_argument" = "xyes" ; then
+		if test "x$xorg_testset_cc_unused_command_line_argument" = "xyes" ; then
 			CFLAGS="$CFLAGS -Werror=unused-command-line-argument"
 		fi
 
 		CFLAGS="$CFLAGS -Werror=attributes"
 
-		{ $as_echo "$as_me:$LINENO: checking if $CC supports-Werror=attributes" >&5
-$as_echo_n "checking if $CC supports-Werror=attributes... " >&6; }
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC supports -Werror=attributes" >&5
+$as_echo_n "checking if $CC supports -Werror=attributes... " >&6; }
 		cacheid=xorg_cv_cc_flag__Werror_attributes
-		if { as_var=$cacheid; eval "test \"\${$as_var+set}\" = set"; }; then
+		if eval \${$cacheid+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 int i;
 int
@@ -14207,45 +10133,20 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_link") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
-       }; then
+if ac_fn_c_try_link "$LINENO"; then :
   eval $cacheid=yes
 else
-  $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	eval $cacheid=no
+  eval $cacheid=no
 fi
-
-rm -rf conftest.dSYM
-rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
-      conftest$ac_exeext conftest.$ac_ext
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
 fi
 
 
 		CFLAGS="$xorg_testset_save_CFLAGS"
 
 		eval supported=\$$cacheid
-		{ $as_echo "$as_me:$LINENO: result: $supported" >&5
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supported" >&5
 $as_echo "$supported" >&6; }
 		if test "$supported" = "yes" ; then
 			STRICT_CFLAGS="$STRICT_CFLAGS -Werror=attributes"
@@ -14394,59 +10295,93 @@ MAN_SUBSTS="\
 
 
 
-AM_DEFAULT_VERBOSITY=1
-
+# Check whether --enable-silent-rules was given.
+if test "${enable_silent_rules+set}" = set; then :
+  enableval=$enable_silent_rules;
+fi
 
+case $enable_silent_rules in # (((
+  yes) AM_DEFAULT_VERBOSITY=0;;
+   no) AM_DEFAULT_VERBOSITY=1;;
+    *) AM_DEFAULT_VERBOSITY=0;;
+esac
+am_make=${MAKE-make}
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $am_make supports nested variables" >&5
+$as_echo_n "checking whether $am_make supports nested variables... " >&6; }
+if ${am_cv_make_support_nested_variables+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if $as_echo 'TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+	@$(TRUE)
+.PHONY: am__doit' | $am_make -f - >/dev/null 2>&1; then
+  am_cv_make_support_nested_variables=yes
+else
+  am_cv_make_support_nested_variables=no
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_make_support_nested_variables" >&5
+$as_echo "$am_cv_make_support_nested_variables" >&6; }
+if test $am_cv_make_support_nested_variables = yes; then
+    AM_V='$(V)'
+  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+  AM_V=$AM_DEFAULT_VERBOSITY
+  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AM_BACKSLASH='\'
 
-ac_config_headers="$ac_config_headers config.h"
 
 
 # Checks for pkg-config packages
 
 pkg_failed=no
-{ $as_echo "$as_me:$LINENO: checking for FSTOBDF" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for FSTOBDF" >&5
 $as_echo_n "checking for FSTOBDF... " >&6; }
 
-if test -n "$PKG_CONFIG"; then
-    if test -n "$FSTOBDF_CFLAGS"; then
-        pkg_cv_FSTOBDF_CFLAGS="$FSTOBDF_CFLAGS"
-    else
-        if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xproto >= 7.0.17 x11 libfs\"") >&5
-  ($PKG_CONFIG --exists --print-errors "xproto >= 7.0.17 x11 libfs") 2>&5
+if test -n "$FSTOBDF_CFLAGS"; then
+    pkg_cv_FSTOBDF_CFLAGS="$FSTOBDF_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xproto >= 7.0.25 x11 libfs\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "xproto >= 7.0.25 x11 libfs") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
-  pkg_cv_FSTOBDF_CFLAGS=`$PKG_CONFIG --cflags "xproto >= 7.0.17 x11 libfs" 2>/dev/null`
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_FSTOBDF_CFLAGS=`$PKG_CONFIG --cflags "xproto >= 7.0.25 x11 libfs" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
-    fi
-else
-	pkg_failed=untried
+ else
+    pkg_failed=untried
 fi
-if test -n "$PKG_CONFIG"; then
-    if test -n "$FSTOBDF_LIBS"; then
-        pkg_cv_FSTOBDF_LIBS="$FSTOBDF_LIBS"
-    else
-        if test -n "$PKG_CONFIG" && \
-    { ($as_echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"xproto >= 7.0.17 x11 libfs\"") >&5
-  ($PKG_CONFIG --exists --print-errors "xproto >= 7.0.17 x11 libfs") 2>&5
+if test -n "$FSTOBDF_LIBS"; then
+    pkg_cv_FSTOBDF_LIBS="$FSTOBDF_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"xproto >= 7.0.25 x11 libfs\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "xproto >= 7.0.25 x11 libfs") 2>&5
   ac_status=$?
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; then
-  pkg_cv_FSTOBDF_LIBS=`$PKG_CONFIG --libs "xproto >= 7.0.17 x11 libfs" 2>/dev/null`
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then
+  pkg_cv_FSTOBDF_LIBS=`$PKG_CONFIG --libs "xproto >= 7.0.25 x11 libfs" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
-    fi
-else
-	pkg_failed=untried
+ else
+    pkg_failed=untried
 fi
 
 
 
 if test $pkg_failed = yes; then
+   	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
 
 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
         _pkg_short_errors_supported=yes
@@ -14454,14 +10389,14 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        FSTOBDF_PKG_ERRORS=`$PKG_CONFIG --short-errors --errors-to-stdout --print-errors "xproto >= 7.0.17 x11 libfs"`
+	        FSTOBDF_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "xproto >= 7.0.25 x11 libfs" 2>&1`
         else
-	        FSTOBDF_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "xproto >= 7.0.17 x11 libfs"`
+	        FSTOBDF_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "xproto >= 7.0.25 x11 libfs" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$FSTOBDF_PKG_ERRORS" >&5
 
-	{ { $as_echo "$as_me:$LINENO: error: Package requirements (xproto >= 7.0.17 x11 libfs) were not met:
+	as_fn_error $? "Package requirements (xproto >= 7.0.25 x11 libfs) were not met:
 
 $FSTOBDF_PKG_ERRORS
 
@@ -14470,32 +10405,13 @@ installed software in a non-standard prefix.
 
 Alternatively, you may set the environment variables FSTOBDF_CFLAGS
 and FSTOBDF_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&5
-$as_echo "$as_me: error: Package requirements (xproto >= 7.0.17 x11 libfs) were not met:
-
-$FSTOBDF_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-Alternatively, you may set the environment variables FSTOBDF_CFLAGS
-and FSTOBDF_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-" >&2;}
-   { (exit 1); exit 1; }; }
+See the pkg-config man page for more details." "$LINENO" 5
 elif test $pkg_failed = untried; then
-	{ { $as_echo "$as_me:$LINENO: error: The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-Alternatively, you may set the environment variables FSTOBDF_CFLAGS
-and FSTOBDF_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.
-
-To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.
-See \`config.log' for more details." >&5
-$as_echo "$as_me: error: The pkg-config script could not be found or is too old.  Make sure it
+     	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "The pkg-config script could not be found or is too old.  Make sure it
 is in your PATH or set the PKG_CONFIG environment variable to the full
 path to pkg-config.
 
@@ -14503,15 +10419,14 @@ Alternatively, you may set the environment variables FSTOBDF_CFLAGS
 and FSTOBDF_LIBS to avoid the need to call pkg-config.
 See the pkg-config man page for more details.
 
-To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>.
-See \`config.log' for more details." >&2;}
-   { (exit 1); exit 1; }; }
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.
+See \`config.log' for more details" "$LINENO" 5; }
 else
 	FSTOBDF_CFLAGS=$pkg_cv_FSTOBDF_CFLAGS
 	FSTOBDF_LIBS=$pkg_cv_FSTOBDF_LIBS
-        { $as_echo "$as_me:$LINENO: result: yes" >&5
+        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-	:
+
 fi
 
 ac_config_files="$ac_config_files Makefile man/Makefile"
@@ -14543,13 +10458,13 @@ _ACEOF
     case $ac_val in #(
     *${as_nl}*)
       case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:$LINENO: WARNING: Cache variable $ac_var contains a newline." >&5
-$as_echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
       esac
       case $ac_var in #(
       _ | IFS | as_nl) ;; #(
       BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
-      *) $as_unset $ac_var ;;
+      *) { eval $ac_var=; unset $ac_var;} ;;
       esac ;;
     esac
   done
@@ -14557,8 +10472,8 @@ $as_echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
   (set) 2>&1 |
     case $as_nl`(ac_space=' '; set) 2>&1` in #(
     *${as_nl}ac_space=\ *)
-      # `set' does not quote correctly, so add quotes (double-quote
-      # substitution turns \\\\ into \\, and sed turns \\ into \).
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
       sed -n \
 	"s/'/'\\\\''/g;
 	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
@@ -14580,12 +10495,23 @@ $as_echo "$as_me: WARNING: Cache variable $ac_var contains a newline." >&2;} ;;
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
-    test "x$cache_file" != "x/dev/null" &&
-      { $as_echo "$as_me:$LINENO: updating cache $cache_file" >&5
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
 $as_echo "$as_me: updating cache $cache_file" >&6;}
-    cat confcache >$cache_file
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
   else
-    { $as_echo "$as_me:$LINENO: not updating unwritable cache $cache_file" >&5
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
   fi
 fi
@@ -14599,49 +10525,54 @@ DEFS=-DHAVE_CONFIG_H
 
 ac_libobjs=
 ac_ltlibobjs=
+U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
   # 1. Remove the extension, and $U if already installed.
   ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
   ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
   # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
   #    will be set to the directory where LIBOBJS objects are built.
-  ac_libobjs="$ac_libobjs \${LIBOBJDIR}$ac_i\$U.$ac_objext"
-  ac_ltlibobjs="$ac_ltlibobjs \${LIBOBJDIR}$ac_i"'$U.lo'
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
 done
 LIBOBJS=$ac_libobjs
 
 LTLIBOBJS=$ac_ltlibobjs
 
 
-if test -z "${MAINTAINER_MODE_TRUE}" && test -z "${MAINTAINER_MODE_FALSE}"; then
-  { { $as_echo "$as_me:$LINENO: error: conditional \"MAINTAINER_MODE\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-$as_echo "$as_me: error: conditional \"MAINTAINER_MODE\" was never defined.
-Usually this means the macro was only invoked conditionally." >&2;}
-   { (exit 1); exit 1; }; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+   if test -n "$am_sleep_pid"; then
+     # Hide warnings about reused PIDs.
+     wait $am_sleep_pid 2>/dev/null
+   fi
+   { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+ if test -n "$EXEEXT"; then
+  am__EXEEXT_TRUE=
+  am__EXEEXT_FALSE='#'
+else
+  am__EXEEXT_TRUE='#'
+  am__EXEEXT_FALSE=
 fi
+
 if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
-  { { $as_echo "$as_me:$LINENO: error: conditional \"AMDEP\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-$as_echo "$as_me: error: conditional \"AMDEP\" was never defined.
-Usually this means the macro was only invoked conditionally." >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
-  { { $as_echo "$as_me:$LINENO: error: conditional \"am__fastdepCC\" was never defined.
-Usually this means the macro was only invoked conditionally." >&5
-$as_echo "$as_me: error: conditional \"am__fastdepCC\" was never defined.
-Usually this means the macro was only invoked conditionally." >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
 
-: ${CONFIG_STATUS=./config.status}
+: "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:$LINENO: creating $CONFIG_STATUS" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
 $as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
-cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
 # Generated by $as_me.
 # Run this file to recreate the current configuration.
@@ -14651,17 +10582,18 @@ cat >$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 debug=false
 ac_cs_recheck=false
 ac_cs_silent=false
-SHELL=\${CONFIG_SHELL-$SHELL}
-_ACEOF
 
-cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-## --------------------- ##
-## M4sh Initialization.  ##
-## --------------------- ##
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
 
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
   NULLCMD=:
   # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
@@ -14669,23 +10601,15 @@ if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then
   alias -g '${1+"$@"}'='"$@"'
   setopt NO_GLOB_SUBST
 else
-  case `(set -o) 2>/dev/null` in
-  *posix*) set -o posix ;;
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
 esac
-
 fi
 
 
-
-
-# PATH needs CR
-# Avoid depending upon Character Ranges.
-as_cr_letters='abcdefghijklmnopqrstuvwxyz'
-as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-as_cr_Letters=$as_cr_letters$as_cr_LETTERS
-as_cr_digits='0123456789'
-as_cr_alnum=$as_cr_Letters$as_cr_digits
-
 as_nl='
 '
 export as_nl
@@ -14693,7 +10617,13 @@ export as_nl
 as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
 as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
-if (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
   as_echo='printf %s\n'
   as_echo_n='printf %s'
 else
@@ -14704,7 +10634,7 @@ else
     as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
     as_echo_n_body='eval
       arg=$1;
-      case $arg in
+      case $arg in #(
       *"$as_nl"*)
 	expr "X$arg" : "X\\(.*\\)$as_nl";
 	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
@@ -14727,13 +10657,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
   }
 fi
 
-# Support unset when possible.
-if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
-  as_unset=unset
-else
-  as_unset=false
-fi
-
 
 # IFS
 # We need space, tab and new line, in precisely that order.  Quoting is
@@ -14743,15 +10666,16 @@ fi
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
-case $0 in
+as_myself=
+case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
-  test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
-done
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
 IFS=$as_save_IFS
 
      ;;
@@ -14763,12 +10687,16 @@ if test "x$as_myself" = x; then
 fi
 if test ! -f "$as_myself"; then
   $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
-  { (exit 1); exit 1; }
+  exit 1
 fi
 
-# Work around bugs in pre-3.0 UWIN ksh.
-for as_var in ENV MAIL MAILPATH
-do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
 done
 PS1='$ '
 PS2='> '
@@ -14780,7 +10708,89 @@ export LC_ALL
 LANGUAGE=C
 export LANGUAGE
 
-# Required to use basename.
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
 if expr a : '\(a\)' >/dev/null 2>&1 &&
    test "X`expr 00001 : '.*\(...\)'`" = X001; then
   as_expr=expr
@@ -14794,8 +10804,12 @@ else
   as_basename=false
 fi
 
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
 
-# Name of the executable.
 as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
@@ -14815,76 +10829,25 @@ $as_echo X/"$0" |
 	  }
 	  s/.*/./; q'`
 
-# CDPATH.
-$as_unset CDPATH
-
-
-
-  as_lineno_1=$LINENO
-  as_lineno_2=$LINENO
-  test "x$as_lineno_1" != "x$as_lineno_2" &&
-  test "x`expr $as_lineno_1 + 1`" = "x$as_lineno_2" || {
-
-  # Create $as_me.lineno as a copy of $as_myself, but with $LINENO
-  # uniformly replaced by the line number.  The first 'sed' inserts a
-  # line-number line after each line using $LINENO; the second 'sed'
-  # does the real work.  The second script uses 'N' to pair each
-  # line-number line with the line containing $LINENO, and appends
-  # trailing '-' during substitution so that $LINENO is not a special
-  # case at line end.
-  # (Raja R Harinath suggested sed '=', and Paul Eggert wrote the
-  # scripts with optimization help from Paolo Bonzini.  Blame Lee
-  # E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2
-   { (exit 1); exit 1; }; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
-
-if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
-  as_dirname=dirname
-else
-  as_dirname=false
-fi
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
 
 ECHO_C= ECHO_N= ECHO_T=
-case `echo -n x` in
+case `echo -n x` in #(((((
 -n*)
-  case `echo 'x\c'` in
+  case `echo 'xy\c'` in
   *c*) ECHO_T='	';;	# ECHO_T is single tab character.
-  *)   ECHO_C='\c';;
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
   esac;;
 *)
   ECHO_N='-n';;
 esac
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
 
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
@@ -14899,49 +10862,85 @@ if (echo >conf$$.file) 2>/dev/null; then
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
 
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
 if mkdir -p . 2>/dev/null; then
-  as_mkdir_p=:
+  as_mkdir_p='mkdir -p "$as_dir"'
 else
   test -d ./-p && rmdir ./-p
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -14951,13 +10950,19 @@ as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
 
 
 exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
 
-# Save the log message, to keep $[0] and so on meaningful, and to
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by fstobdf $as_me 1.0.5, which was
-generated by GNU Autoconf 2.62.  Invocation command line was
+This file was extended by fstobdf $as_me 1.0.6, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -14970,6 +10975,15 @@ on `(hostname || uname -n) 2>/dev/null | sed 1q`
 
 _ACEOF
 
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 # Files that config.status was made for.
 config_files="$ac_config_files"
@@ -14980,19 +10994,22 @@ _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 ac_cs_usage="\
-\`$as_me' instantiates files from templates according to the
-current configuration.
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
 
-Usage: $0 [OPTIONS] [FILE]...
+Usage: $0 [OPTION]... [TAG]...
 
   -h, --help       print this help, then exit
   -V, --version    print version number and configuration settings, then exit
-  -q, --quiet      do not print progress messages
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
   -d, --debug      don't remove temporary files
       --recheck    update $as_me by reconfiguring in the same conditions
-  --file=FILE[:TEMPLATE]
+      --file=FILE[:TEMPLATE]
                    instantiate the configuration file FILE
-  --header=FILE[:TEMPLATE]
+      --header=FILE[:TEMPLATE]
                    instantiate the configuration header FILE
 
 Configuration files:
@@ -15004,22 +11021,24 @@ $config_headers
 Configuration commands:
 $config_commands
 
-Report bugs to <bug-autoconf@gnu.org>."
+Report bugs to <https://bugs.freedesktop.org/enter_bug.cgi?product=xorg>."
 
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-fstobdf config.status 1.0.5
-configured by $0, generated by GNU Autoconf 2.62,
-  with options \\"`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`\\"
+fstobdf config.status 1.0.6
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2008 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
 ac_pwd='$ac_pwd'
 srcdir='$srcdir'
 INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
 AWK='$AWK'
 test -n "\$AWK" || AWK=awk
 _ACEOF
@@ -15030,11 +11049,16 @@ ac_need_defaults=:
 while test $# != 0
 do
   case $1 in
-  --*=*)
+  --*=?*)
     ac_option=`expr "X$1" : 'X\([^=]*\)='`
     ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
     ac_shift=:
     ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
   *)
     ac_option=$1
     ac_optarg=$2
@@ -15048,27 +11072,29 @@ do
     ac_cs_recheck=: ;;
   --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
     $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
   --debug | --debu | --deb | --de | --d | -d )
     debug=: ;;
   --file | --fil | --fi | --f )
     $ac_shift
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
     esac
-    CONFIG_FILES="$CONFIG_FILES '$ac_optarg'"
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
     ac_need_defaults=false;;
   --header | --heade | --head | --hea )
     $ac_shift
     case $ac_optarg in
     *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
     esac
-    CONFIG_HEADERS="$CONFIG_HEADERS '$ac_optarg'"
+    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
     ac_need_defaults=false;;
   --he | --h)
     # Conflict between --help and --header
-    { $as_echo "$as_me: error: ambiguous option: $1
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; };;
+    as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
   --help | --hel | -h )
     $as_echo "$ac_cs_usage"; exit ;;
   -q | -quiet | --quiet | --quie | --qui | --qu | --q \
@@ -15076,11 +11102,10 @@ Try \`$0 --help' for more information." >&2
     ac_cs_silent=: ;;
 
   # This is an error.
-  -*) { $as_echo "$as_me: error: unrecognized option: $1
-Try \`$0 --help' for more information." >&2
-   { (exit 1); exit 1; }; } ;;
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
 
-  *) ac_config_targets="$ac_config_targets $1"
+  *) as_fn_append ac_config_targets " $1"
      ac_need_defaults=false ;;
 
   esac
@@ -15097,7 +11122,7 @@ fi
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
-  set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
   \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
@@ -15131,14 +11156,12 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 for ac_config_target in $ac_config_targets
 do
   case $ac_config_target in
-    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+    "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
     "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
     "man/Makefile") CONFIG_FILES="$CONFIG_FILES man/Makefile" ;;
 
-  *) { { $as_echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
-$as_echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
-   { (exit 1); exit 1; }; };;
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -15161,26 +11184,24 @@ fi
 # after its creation but before its name has been assigned to `$tmp'.
 $debug ||
 {
-  tmp=
+  tmp= ac_tmp=
   trap 'exit_status=$?
-  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
 ' 0
-  trap '{ (exit 1); exit 1; }' 1 2 13 15
+  trap 'as_fn_exit 1' 1 2 13 15
 }
 # Create a (secure) tmp directory for tmp files.
 
 {
   tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
-  test -n "$tmp" && test -d "$tmp"
+  test -d "$tmp"
 }  ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
-} ||
-{
-   $as_echo "$as_me: cannot create a temporary directory in ." >&2
-   { (exit 1); exit 1; }
-}
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -15188,7 +11209,13 @@ $debug ||
 if test -n "$CONFIG_FILES"; then
 
 
-ac_cr='
'
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
 ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
 if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
   ac_cs_awk_cr='\\r'
@@ -15196,7 +11223,7 @@ else
   ac_cs_awk_cr=$ac_cr
 fi
 
-echo 'BEGIN {' >"$tmp/subs1.awk" &&
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
 _ACEOF
 
 
@@ -15205,23 +11232,18 @@ _ACEOF
   echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
   echo "_ACEOF"
 } >conf$$subs.sh ||
-  { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
-ac_delim_num=`echo "$ac_subst_vars" | grep -c '$'`
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   . ./conf$$subs.sh ||
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X` = $ac_delim_num; then
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
     break
   elif $ac_last_try; then
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -15229,7 +11251,7 @@ done
 rm -f conf$$subs.sh
 
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
 h
@@ -15243,7 +11265,7 @@ s/'"$ac_delim"'$//
 t delim
 :nl
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more1
 s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
 p
@@ -15257,7 +11279,7 @@ s/.\{148\}//
 t nl
 :delim
 h
-s/\(.\{148\}\).*/\1/
+s/\(.\{148\}\)..*/\1/
 t more2
 s/["\\]/\\&/g; s/^/"/; s/$/"/
 p
@@ -15277,7 +11299,7 @@ t delim
 rm -f conf$$subs.awk
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
-cat >>"\$tmp/subs1.awk" <<_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
   FS = ""
 
@@ -15309,23 +11331,29 @@ if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
   cat
-fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
-  || { { $as_echo "$as_me:$LINENO: error: could not setup config files machinery" >&5
-$as_echo "$as_me: error: could not setup config files machinery" >&2;}
-   { (exit 1); exit 1; }; }
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
-# VPATH may cause trouble with some makes, so we remove $(srcdir),
-# ${srcdir} and @srcdir@ from VPATH if srcdir is ".", strip leading and
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
 # trailing colons and then remove the whole line if VPATH becomes empty
 # (actually we leave an empty line to preserve line numbers).
 if test "x$srcdir" = x.; then
-  ac_vpsub='/^[	 ]*VPATH[	 ]*=/{
-s/:*\$(srcdir):*/:/
-s/:*\${srcdir}:*/:/
-s/:*@srcdir@:*/:/
-s/^\([^=]*=[	 ]*\):*/\1/
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
 s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
 s/^[^=]*=[	 ]*$//
 }'
 fi
@@ -15337,7 +11365,7 @@ fi # test -n "$CONFIG_FILES"
 # No need to generate them if there are no CONFIG_HEADERS.
 # This happens for instance with `./config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
-cat >"$tmp/defines.awk" <<\_ACAWK ||
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
@@ -15349,13 +11377,11 @@ _ACEOF
 # handling of long lines.
 ac_delim='%!_!# '
 for ac_last_try in false false :; do
-  ac_t=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_t"; then
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
     break
   elif $ac_last_try; then
-    { { $as_echo "$as_me:$LINENO: error: could not make $CONFIG_HEADERS" >&5
-$as_echo "$as_me: error: could not make $CONFIG_HEADERS" >&2;}
-   { (exit 1); exit 1; }; }
+    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
   else
     ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
   fi
@@ -15421,9 +11447,9 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   }
   split(mac1, mac2, "(") #)
   macro = mac2[1]
+  prefix = substr(line, 1, index(line, defundef) - 1)
   if (D_is_set[macro]) {
     # Preserve the white space surrounding the "#".
-    prefix = substr(line, 1, index(line, defundef) - 1)
     print prefix "define", macro P[macro] D[macro]
     next
   } else {
@@ -15431,7 +11457,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
     # in the case of _POSIX_SOURCE, which is predefined and required
     # on some systems where configure will not decide to define it.
     if (defundef == "undef") {
-      print "/*", line, "*/"
+      print "/*", prefix defundef, macro, "*/"
       next
     }
   }
@@ -15440,9 +11466,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
 _ACEOF
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
-  { { $as_echo "$as_me:$LINENO: error: could not setup config headers machinery" >&5
-$as_echo "$as_me: error: could not setup config headers machinery" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
 fi # test -n "$CONFIG_HEADERS"
 
 
@@ -15455,9 +11479,7 @@ do
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) { { $as_echo "$as_me:$LINENO: error: Invalid tag $ac_tag." >&5
-$as_echo "$as_me: error: Invalid tag $ac_tag." >&2;}
-   { (exit 1); exit 1; }; };;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -15476,7 +11498,7 @@ $as_echo "$as_me: error: Invalid tag $ac_tag." >&2;}
     for ac_f
     do
       case $ac_f in
-      -) ac_f="$tmp/stdin";;
+      -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
 	 # because $ac_f cannot contain `:'.
@@ -15485,12 +11507,10 @@ $as_echo "$as_me: error: Invalid tag $ac_tag." >&2;}
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   { { $as_echo "$as_me:$LINENO: error: cannot find input file: $ac_f" >&5
-$as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
-   { (exit 1); exit 1; }; };;
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
-      ac_file_inputs="$ac_file_inputs '$ac_f'"
+      as_fn_append ac_file_inputs " '$ac_f'"
     done
 
     # Let's still pretend it is `configure' which instantiates (i.e., don't
@@ -15501,7 +11521,7 @@ $as_echo "$as_me: error: cannot find input file: $ac_f" >&2;}
 	`' by configure.'
     if test x"$ac_file" != x-; then
       configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:$LINENO: creating $ac_file" >&5
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
 $as_echo "$as_me: creating $ac_file" >&6;}
     fi
     # Neutralize special characters interpreted by sed in replacement strings.
@@ -15513,10 +11533,8 @@ $as_echo "$as_me: creating $ac_file" >&6;}
     esac
 
     case $ac_tag in
-    *:-:* | *:-) cat >"$tmp/stdin" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; } ;;
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -15544,47 +11562,7 @@ $as_echo X"$ac_file" |
 	    q
 	  }
 	  s/.*/./; q'`
-  { as_dir="$ac_dir"
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
-    done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || { { $as_echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-$as_echo "$as_me: error: cannot create directory $as_dir" >&2;}
-   { (exit 1); exit 1; }; }; }
+  as_dir="$ac_dir"; as_fn_mkdir_p
   ac_builddir=.
 
 case "$ac_dir" in
@@ -15630,13 +11608,17 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
   [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
   *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
   esac
+  ac_MKDIR_P=$MKDIR_P
+  case $MKDIR_P in
+  [\\/$]* | ?:[\\/]* ) ;;
+  */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+  esac
 _ACEOF
 
 cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # If the template does not know about datarootdir, expand it.
 # FIXME: This hack should be removed a few years after 2.60.
 ac_datarootdir_hack=; ac_datarootdir_seen=
-
 ac_sed_dataroot='
 /datarootdir/ {
   p
@@ -15646,12 +11628,11 @@ ac_sed_dataroot='
 /@docdir@/p
 /@infodir@/p
 /@localedir@/p
-/@mandir@/p
-'
+/@mandir@/p'
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
 $as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
@@ -15661,7 +11642,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
   s&@infodir@&$infodir&g
   s&@localedir@&$localedir&g
   s&@mandir@&$mandir&g
-    s&\\\${datarootdir}&$datarootdir&g' ;;
+  s&\\\${datarootdir}&$datarootdir&g' ;;
 esac
 _ACEOF
 
@@ -15686,29 +11667,27 @@ s&@builddir@&$ac_builddir&;t t
 s&@abs_builddir@&$ac_abs_builddir&;t t
 s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
 s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
 $ac_datarootdir_hack
 "
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:$LINENO: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined." >&5
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
-which seems to be undefined.  Please make sure it is defined." >&2;}
+which seems to be undefined.  Please make sure it is defined" >&2;}
 
-  rm -f "$tmp/stdin"
+  rm -f "$ac_tmp/stdin"
   case $ac_file in
-  -) cat "$tmp/out" && rm -f "$tmp/out";;
-  *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
   esac \
-  || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
  ;;
   :H)
   #
@@ -15717,44 +11696,39 @@ $as_echo "$as_me: error: could not create $ac_file" >&2;}
   if test x"$ac_file" != x-; then
     {
       $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs"
-    } >"$tmp/config.h" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
-    if diff "$ac_file" "$tmp/config.h" >/dev/null 2>&1; then
-      { $as_echo "$as_me:$LINENO: $ac_file is unchanged" >&5
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
 $as_echo "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
-      mv "$tmp/config.h" "$ac_file" \
-	|| { { $as_echo "$as_me:$LINENO: error: could not create $ac_file" >&5
-$as_echo "$as_me: error: could not create $ac_file" >&2;}
-   { (exit 1); exit 1; }; }
+      mv "$ac_tmp/config.h" "$ac_file" \
+	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
     $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs" \
-      || { { $as_echo "$as_me:$LINENO: error: could not create -" >&5
-$as_echo "$as_me: error: could not create -" >&2;}
-   { (exit 1); exit 1; }; }
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+      || as_fn_error $? "could not create -" "$LINENO" 5
   fi
 # Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
 _am_stamp_count=1
 for _am_header in $config_headers :; do
   case $_am_header in
-    "$ac_file" | "$ac_file":* )
+    $_am_arg | $_am_arg:* )
       break ;;
     * )
       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
   esac
 done
-echo "timestamp for "$ac_file"" >`$as_dirname -- "$ac_file" ||
-$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$ac_file" : 'X\(//\)[^/]' \| \
-	 X"$ac_file" : 'X\(//\)$' \| \
-	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$_am_arg" : 'X\(//\)[^/]' \| \
+	 X"$_am_arg" : 'X\(//\)$' \| \
+	 X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
     sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -15774,24 +11748,35 @@ $as_echo X"$ac_file" |
 	  s/.*/./; q'`/stamp-h$_am_stamp_count
  ;;
 
-  :C)  { $as_echo "$as_me:$LINENO: executing $ac_file commands" >&5
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
 $as_echo "$as_me: executing $ac_file commands" >&6;}
  ;;
   esac
 
 
   case $ac_file$ac_mode in
-    "depfiles":C) test x"$AMDEP_TRUE" != x"" || for mf in $CONFIG_FILES; do
-  # Strip MF so we end up with the name of the file.
-  mf=`echo "$mf" | sed -e 's/:.*$//'`
-  # Check whether this is an Automake generated Makefile or not.
-  # We used to match only the files named `Makefile.in', but
-  # some people rename them; so instead we look at the file content.
-  # Grep'ing the first line is not enough: some people post-process
-  # each Makefile.in and add a new line on top of each file to say so.
-  # So let's grep whole file.
-  if grep '^#.*generated by automake' $mf > /dev/null 2>&1; then
-    dirpart=`$as_dirname -- "$mf" ||
+    "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+  # Autoconf 2.62 quotes --file arguments for eval, but not when files
+  # are listed without --file.  Let's play safe and only enable the eval
+  # if we detect the quoting.
+  case $CONFIG_FILES in
+  *\'*) eval set x "$CONFIG_FILES" ;;
+  *)   set x $CONFIG_FILES ;;
+  esac
+  shift
+  for mf
+  do
+    # Strip MF so we end up with the name of the file.
+    mf=`echo "$mf" | sed -e 's/:.*$//'`
+    # Check whether this is an Automake generated Makefile or not.
+    # We used to match only the files named 'Makefile.in', but
+    # some people rename them; so instead we look at the file content.
+    # Grep'ing the first line is not enough: some people post-process
+    # each Makefile.in and add a new line on top of each file to say so.
+    # Grep'ing the whole file is not good either: AIX grep has a line
+    # limit of 2048, but all sed's we know have understand at least 4000.
+    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
+      dirpart=`$as_dirname -- "$mf" ||
 $as_expr X"$mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$mf" : 'X\(//\)[^/]' \| \
 	 X"$mf" : 'X\(//\)$' \| \
@@ -15814,28 +11799,26 @@ $as_echo X"$mf" |
 	    q
 	  }
 	  s/.*/./; q'`
-  else
-    continue
-  fi
-  # Extract the definition of DEPDIR, am__include, and am__quote
-  # from the Makefile without running `make'.
-  DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
-  test -z "$DEPDIR" && continue
-  am__include=`sed -n 's/^am__include = //p' < "$mf"`
-  test -z "am__include" && continue
-  am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
-  # When using ansi2knr, U may be empty or an underscore; expand it
-  U=`sed -n 's/^U = //p' < "$mf"`
-  # Find all dependency output files, they are included files with
-  # $(DEPDIR) in their names.  We invoke sed twice because it is the
-  # simplest approach to changing $(DEPDIR) to its actual value in the
-  # expansion.
-  for file in `sed -n "
-    s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
-       sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
-    # Make sure the directory exists.
-    test -f "$dirpart/$file" && continue
-    fdir=`$as_dirname -- "$file" ||
+    else
+      continue
+    fi
+    # Extract the definition of DEPDIR, am__include, and am__quote
+    # from the Makefile without running 'make'.
+    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
+    test -z "$DEPDIR" && continue
+    am__include=`sed -n 's/^am__include = //p' < "$mf"`
+    test -z "am__include" && continue
+    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
+    # Find all dependency output files, they are included files with
+    # $(DEPDIR) in their names.  We invoke sed twice because it is the
+    # simplest approach to changing $(DEPDIR) to its actual value in the
+    # expansion.
+    for file in `sed -n "
+      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
+	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
+      # Make sure the directory exists.
+      test -f "$dirpart/$file" && continue
+      fdir=`$as_dirname -- "$file" ||
 $as_expr X"$file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$file" : 'X\(//\)[^/]' \| \
 	 X"$file" : 'X\(//\)$' \| \
@@ -15858,66 +11841,24 @@ $as_echo X"$file" |
 	    q
 	  }
 	  s/.*/./; q'`
-    { as_dir=$dirpart/$fdir
-  case $as_dir in #(
-  -*) as_dir=./$as_dir;;
-  esac
-  test -d "$as_dir" || { $as_mkdir_p && mkdir -p "$as_dir"; } || {
-    as_dirs=
-    while :; do
-      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
-      *) as_qdir=$as_dir;;
-      esac
-      as_dirs="'$as_qdir' $as_dirs"
-      as_dir=`$as_dirname -- "$as_dir" ||
-$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
-	 X"$as_dir" : 'X\(//\)[^/]' \| \
-	 X"$as_dir" : 'X\(//\)$' \| \
-	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
-    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)[^/].*/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-      test -d "$as_dir" && break
+      as_dir=$dirpart/$fdir; as_fn_mkdir_p
+      # echo "creating $dirpart/$file"
+      echo '# dummy' > "$dirpart/$file"
     done
-    test -z "$as_dirs" || eval "mkdir $as_dirs"
-  } || test -d "$as_dir" || { { $as_echo "$as_me:$LINENO: error: cannot create directory $as_dir" >&5
-$as_echo "$as_me: error: cannot create directory $as_dir" >&2;}
-   { (exit 1); exit 1; }; }; }
-    # echo "creating $dirpart/$file"
-    echo '# dummy' > "$dirpart/$file"
   done
-done
+}
  ;;
 
   esac
 done # for ac_tag
 
 
-{ (exit 0); exit 0; }
+as_fn_exit 0
 _ACEOF
-chmod +x $CONFIG_STATUS
 ac_clean_files=$ac_clean_files_save
 
 test $ac_write_fail = 0 ||
-  { { $as_echo "$as_me:$LINENO: error: write failure creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: error: write failure creating $CONFIG_STATUS" >&2;}
-   { (exit 1); exit 1; }; }
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
 
 
 # configure is writing to config.log, and then calls config.status.
@@ -15938,10 +11879,10 @@ if test "$no_create" != yes; then
   exec 5>>config.log
   # Use ||, not &&, to avoid exiting from the if with $? = 1, which
   # would make configure fail if this is the last instruction.
-  $ac_cs_success || { (exit 1); exit 1; }
+  $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:$LINENO: WARNING: Unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: Unrecognized options: $ac_unrecognized_opts" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi