Update to xauth 1.0.6

1 files changed, 341 insertions, 89 deletions

diff --git a/app/xauth/aclocal.m4 b/app/xauth/aclocal.m4
index 28b1bfae8..16087ad86 100644
--- a/app/xauth/aclocal.m4
+++ b/app/xauth/aclocal.m4
@@ -498,18 +498,6 @@ AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
      [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
 ])
 
-# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
-# Free Software Foundation, Inc.
-#
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# serial 8
-
-# AM_CONFIG_HEADER is obsolete.  It has been replaced by AC_CONFIG_HEADERS.
-AU_DEFUN([AM_CONFIG_HEADER], [AC_CONFIG_HEADERS($@)])
-
 # Do all the work for Automake.                             -*- Autoconf -*-
 
 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
@@ -997,7 +985,7 @@ AC_SUBST([am__untar])
 
 dnl xorg-macros.m4.  Generated from xorg-macros.m4.in xorgversion.m4 by configure.
 dnl
-dnl Copyright 2005-2006 Sun Microsystems, Inc.  All rights reserved.
+dnl Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
 dnl 
 dnl Permission is hereby granted, free of charge, to any person obtaining a
 dnl copy of this software and associated documentation files (the "Software"),
@@ -1034,7 +1022,7 @@ dnl DEALINGS IN THE SOFTWARE.
 # See the "minimum version" comment for each macro you use to see what 
 # version you require.
 m4_defun([XORG_MACROS_VERSION],[
-m4_define([vers_have], [1.10.0])
+m4_define([vers_have], [1.13.0])
 m4_define([maj_have], m4_substr(vers_have, 0, m4_index(vers_have, [.])))
 m4_define([maj_needed], m4_substr([$1], 0, m4_index([$1], [.])))
 m4_if(m4_cmp(maj_have, maj_needed), 0,,
@@ -1185,6 +1173,7 @@ MAN_SUBSTS="\
 	-e 's|__xservername__|Xorg|g' \
 	-e 's|__xconfigfile__|xorg.conf|g' \
 	-e 's|__projectroot__|\$(prefix)|g' \
+	-e 's|__apploaddir__|\$(appdefaultdir)|g' \
 	-e 's|__appmansuffix__|\$(APP_MAN_SUFFIX)|g' \
 	-e 's|__drivermansuffix__|\$(DRIVER_MAN_SUFFIX)|g' \
 	-e 's|__adminmansuffix__|\$(ADMIN_MAN_SUFFIX)|g' \
@@ -1342,15 +1331,17 @@ AC_SUBST(MAKE_PDF)
 AC_SUBST(MAKE_HTML)
 ]) # XORG_CHECK_DOCBOOK
 
-# XORG_WITH_XMLTO([MIN-VERSION])
+# XORG_WITH_XMLTO([MIN-VERSION], [DEFAULT])
 # ----------------
 # Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-xmlto option, it allows maximum flexibilty in making decisions
-# as whether or not to use the xmlto package.
+# as whether or not to use the xmlto package. When DEFAULT is not specified,
+# --with-xmlto assumes 'auto'.
 #
 # Interface to module:
 # HAVE_XMLTO: 	used in makefiles to conditionally generate documentation
@@ -1367,10 +1358,12 @@ AC_SUBST(MAKE_HTML)
 #
 AC_DEFUN([XORG_WITH_XMLTO],[
 AC_ARG_VAR([XMLTO], [Path to xmlto command])
+m4_define([_defopt], m4_default([$2], [auto]))
 AC_ARG_WITH(xmlto,
 	AS_HELP_STRING([--with-xmlto],
-	   [Use xmlto to regenerate documentation (default: yes, if installed)]),
-	   [use_xmlto=$withval], [use_xmlto=auto])
+	   [Use xmlto to regenerate documentation (default: ]_defopt[)]),
+	   [use_xmlto=$withval], [use_xmlto=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_xmlto" = x"auto"; then
    AC_PATH_PROG([XMLTO], [xmlto])
@@ -1424,15 +1417,80 @@ AM_CONDITIONAL([HAVE_XMLTO_TEXT], [test $have_xmlto_text = yes])
 AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes])
 ]) # XORG_WITH_XMLTO
 
-# XORG_WITH_ASCIIDOC([MIN-VERSION])
+# XORG_WITH_XSLTPROC([MIN-VERSION], [DEFAULT])
+# --------------------------------------------
+# Minimum version: 1.12.0
+# Minimum version for optional DEFAULT argument: 1.12.0
+#
+# XSLT (Extensible Stylesheet Language Transformations) is a declarative,
+# XML-based language used for the transformation of XML documents.
+# The xsltproc command line tool is for applying XSLT stylesheets to XML documents.
+# It is used under the cover by xmlto to generate html files from DocBook/XML.
+# The XSLT processor is often used as a standalone tool for transformations.
+# It should not be assumed that this tool is used only to work with documnetation.
+# When DEFAULT is not specified, --with-xsltproc assumes 'auto'.
+#
+# Interface to module:
+# HAVE_XSLTPROC: used in makefiles to conditionally generate documentation
+# XSLTPROC:	 returns the path of the xsltproc program found
+#		 returns the path set by the user in the environment
+# --with-xsltproc: 'yes' user instructs the module to use xsltproc
+#		  'no' user instructs the module not to use xsltproc
+# have_xsltproc: returns yes if xsltproc found in PATH or no
+#
+# If the user sets the value of XSLTPROC, AC_PATH_PROG skips testing the path.
+#
+AC_DEFUN([XORG_WITH_XSLTPROC],[
+AC_ARG_VAR([XSLTPROC], [Path to xsltproc command])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(xsltproc,
+	AS_HELP_STRING([--with-xsltproc],
+	   [Use xsltproc for the transformation of XML documents (default: ]_defopt[)]),
+	   [use_xsltproc=$withval], [use_xsltproc=]_defopt)
+m4_undefine([_defopt])
+
+if test "x$use_xsltproc" = x"auto"; then
+   AC_PATH_PROG([XSLTPROC], [xsltproc])
+   if test "x$XSLTPROC" = "x"; then
+        AC_MSG_WARN([xsltproc not found - cannot transform XML documents])
+	have_xsltproc=no
+   else
+        have_xsltproc=yes
+   fi
+elif test "x$use_xsltproc" = x"yes" ; then
+   AC_PATH_PROG([XSLTPROC], [xsltproc])
+   if test "x$XSLTPROC" = "x"; then
+        AC_MSG_ERROR([--with-xsltproc=yes specified but xsltproc not found in PATH])
+   fi
+   have_xsltproc=yes
+elif test "x$use_xsltproc" = x"no" ; then
+   if test "x$XSLTPROC" != "x"; then
+      AC_MSG_WARN([ignoring XSLTPROC environment variable since --with-xsltproc=no was specified])
+   fi
+   have_xsltproc=no
+else
+   AC_MSG_ERROR([--with-xsltproc expects 'yes' or 'no'])
+fi
+
+# Checking for minimum version is not implemented
+# but we want to keep the interface consistent with other commands
+m4_ifval([$1],[AC_MSG_WARN(Checking for MIN-VERSION is not implemented.)])
+
+AM_CONDITIONAL([HAVE_XSLTPROC], [test "$have_xsltproc" = yes])
+]) # XORG_WITH_XSLTPROC
+
+
+# XORG_WITH_ASCIIDOC([MIN-VERSION], [DEFAULT])
 # ----------------
 # Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-asciidoc option, it allows maximum flexibilty in making decisions
-# as whether or not to use the asciidoc package.
+# as whether or not to use the asciidoc package. When DEFAULT is not specified,
+# --with-asciidoc assumes 'auto'.
 #
 # Interface to module:
 # HAVE_ASCIIDOC: used in makefiles to conditionally generate documentation
@@ -1445,10 +1503,12 @@ AM_CONDITIONAL([HAVE_XMLTO], [test "$have_xmlto" = yes])
 #
 AC_DEFUN([XORG_WITH_ASCIIDOC],[
 AC_ARG_VAR([ASCIIDOC], [Path to asciidoc command])
+m4_define([_defopt], m4_default([$2], [auto]))
 AC_ARG_WITH(asciidoc,
 	AS_HELP_STRING([--with-asciidoc],
-	   [Use asciidoc to regenerate documentation (default: yes, if installed)]),
-	   [use_asciidoc=$withval], [use_asciidoc=auto])
+	   [Use asciidoc to regenerate documentation (default: ]_defopt[)]),
+	   [use_asciidoc=$withval], [use_asciidoc=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_asciidoc" = x"auto"; then
    AC_PATH_PROG([ASCIIDOC], [asciidoc])
@@ -1489,15 +1549,17 @@ fi])
 AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes])
 ]) # XORG_WITH_ASCIIDOC
 
-# XORG_WITH_DOXYGEN([MIN-VERSION])
+# XORG_WITH_DOXYGEN([MIN-VERSION], [DEFAULT])
 # --------------------------------
 # Minimum version: 1.5.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-doxygen option, it allows maximum flexibilty in making decisions
-# as whether or not to use the doxygen package.
+# as whether or not to use the doxygen package. When DEFAULT is not specified,
+# --with-doxygen assumes 'auto'.
 #
 # Interface to module:
 # HAVE_DOXYGEN: used in makefiles to conditionally generate documentation
@@ -1510,10 +1572,12 @@ AM_CONDITIONAL([HAVE_ASCIIDOC], [test "$have_asciidoc" = yes])
 #
 AC_DEFUN([XORG_WITH_DOXYGEN],[
 AC_ARG_VAR([DOXYGEN], [Path to doxygen command])
+m4_define([_defopt], m4_default([$2], [auto]))
 AC_ARG_WITH(doxygen,
 	AS_HELP_STRING([--with-doxygen],
-	   [Use doxygen to regenerate documentation (default: yes, if installed)]),
-	   [use_doxygen=$withval], [use_doxygen=auto])
+	   [Use doxygen to regenerate documentation (default: ]_defopt[)]),
+	   [use_doxygen=$withval], [use_doxygen=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_doxygen" = x"auto"; then
    AC_PATH_PROG([DOXYGEN], [doxygen])
@@ -1554,15 +1618,17 @@ fi])
 AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes])
 ]) # XORG_WITH_DOXYGEN
 
-# XORG_WITH_GROFF
+# XORG_WITH_GROFF([DEFAULT])
 # ----------------
 # Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-groff option, it allows maximum flexibilty in making decisions
-# as whether or not to use the groff package.
+# as whether or not to use the groff package. When DEFAULT is not specified,
+# --with-groff assumes 'auto'.
 #
 # Interface to module:
 # HAVE_GROFF:	 used in makefiles to conditionally generate documentation
@@ -1591,10 +1657,12 @@ AM_CONDITIONAL([HAVE_DOXYGEN], [test "$have_doxygen" = yes])
 #
 AC_DEFUN([XORG_WITH_GROFF],[
 AC_ARG_VAR([GROFF], [Path to groff command])
+m4_define([_defopt], m4_default([$1], [auto]))
 AC_ARG_WITH(groff,
 	AS_HELP_STRING([--with-groff],
-	   [Use groff to regenerate documentation (default: yes, if installed)]),
-	   [use_groff=$withval], [use_groff=auto])
+	   [Use groff to regenerate documentation (default: ]_defopt[)]),
+	   [use_groff=$withval], [use_groff=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_groff" = x"auto"; then
    AC_PATH_PROG([GROFF], [groff])
@@ -1657,15 +1725,17 @@ AM_CONDITIONAL([HAVE_GROFF_MM], [test "$groff_mm_works" = yes])
 AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes])
 ]) # XORG_WITH_GROFF
 
-# XORG_WITH_FOP
+# XORG_WITH_FOP([DEFAULT])
 # ----------------
 # Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-fop option, it allows maximum flexibilty in making decisions
-# as whether or not to use the fop package.
+# as whether or not to use the fop package. When DEFAULT is not specified,
+# --with-fop assumes 'auto'.
 #
 # Interface to module:
 # HAVE_FOP: 	used in makefiles to conditionally generate documentation
@@ -1678,10 +1748,12 @@ AM_CONDITIONAL([HAVE_GROFF_HTML], [test "$have_groff_html" = yes])
 #
 AC_DEFUN([XORG_WITH_FOP],[
 AC_ARG_VAR([FOP], [Path to fop command])
+m4_define([_defopt], m4_default([$1], [auto]))
 AC_ARG_WITH(fop,
 	AS_HELP_STRING([--with-fop],
-	   [Use fop to regenerate documentation (default: yes, if installed)]),
-	   [use_fop=$withval], [use_fop=auto])
+	   [Use fop to regenerate documentation (default: ]_defopt[)]),
+	   [use_fop=$withval], [use_fop=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_fop" = x"auto"; then
    AC_PATH_PROG([FOP], [fop])
@@ -1708,15 +1780,17 @@ fi
 AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes])
 ]) # XORG_WITH_FOP
 
-# XORG_WITH_PS2PDF
+# XORG_WITH_PS2PDF([DEFAULT])
 # ----------------
 # Minimum version: 1.6.0
+# Minimum version for optional DEFAULT argument: 1.11.0
 #
 # Documentation tools are not always available on all platforms and sometimes
 # not at the appropriate level. This macro enables a module to test for the
 # presence of the tool and obtain it's path in separate variables. Coupled with
 # the --with-ps2pdf option, it allows maximum flexibilty in making decisions
-# as whether or not to use the ps2pdf package.
+# as whether or not to use the ps2pdf package. When DEFAULT is not specified,
+# --with-ps2pdf assumes 'auto'.
 #
 # Interface to module:
 # HAVE_PS2PDF: 	used in makefiles to conditionally generate documentation
@@ -1729,10 +1803,12 @@ AM_CONDITIONAL([HAVE_FOP], [test "$have_fop" = yes])
 #
 AC_DEFUN([XORG_WITH_PS2PDF],[
 AC_ARG_VAR([PS2PDF], [Path to ps2pdf command])
+m4_define([_defopt], m4_default([$1], [auto]))
 AC_ARG_WITH(ps2pdf,
 	AS_HELP_STRING([--with-ps2pdf],
-	   [Use ps2pdf to regenerate documentation (default: yes, if installed)]),
-	   [use_ps2pdf=$withval], [use_ps2pdf=auto])
+	   [Use ps2pdf to regenerate documentation (default: ]_defopt[)]),
+	   [use_ps2pdf=$withval], [use_ps2pdf=]_defopt)
+m4_undefine([_defopt])
 
 if test "x$use_ps2pdf" = x"auto"; then
    AC_PATH_PROG([PS2PDF], [ps2pdf])
@@ -1783,14 +1859,12 @@ AM_CONDITIONAL([HAVE_PS2PDF], [test "$have_ps2pdf" = yes])
 # parm1:	specify the default value, yes or no.
 #
 AC_DEFUN([XORG_ENABLE_DOCS],[
-default=$1
-if test "x$default" = x ; then
-  default="yes"
-fi
+m4_define([docs_default], m4_default([$1], [yes]))
 AC_ARG_ENABLE(docs,
 	AS_HELP_STRING([--enable-docs],
-	   [Enable building the documentation (default: yes)]),
-	   [build_docs=$enableval], [build_docs=$default])
+	   [Enable building the documentation (default: ]docs_default[)]),
+	   [build_docs=$enableval], [build_docs=]docs_default)
+m4_undefine([docs_default])
 AM_CONDITIONAL(ENABLE_DOCS, [test x$build_docs = xyes])
 AC_MSG_CHECKING([whether to build documentation])
 AC_MSG_RESULT([$build_docs])
@@ -1818,14 +1892,12 @@ AC_MSG_RESULT([$build_docs])
 # parm1:		specify the default value, yes or no.
 #
 AC_DEFUN([XORG_ENABLE_DEVEL_DOCS],[
-devel_default=$1
-if test "x$devel_default" = x ; then
-  devel_default="yes"
-fi
+m4_define([devel_default], m4_default([$1], [yes]))
 AC_ARG_ENABLE(devel-docs,
 	AS_HELP_STRING([--enable-devel-docs],
-	   [Enable building the developer documentation (default: yes)]),
-	   [build_devel_docs=$enableval], [build_devel_docs=$devel_default])
+	   [Enable building the developer documentation (default: ]devel_default[)]),
+	   [build_devel_docs=$enableval], [build_devel_docs=]devel_default)
+m4_undefine([devel_default])
 AM_CONDITIONAL(ENABLE_DEVEL_DOCS, [test x$build_devel_docs = xyes])
 AC_MSG_CHECKING([whether to build developer documentation])
 AC_MSG_RESULT([$build_devel_docs])
@@ -1853,19 +1925,205 @@ AC_MSG_RESULT([$build_devel_docs])
 # parm1:		specify the default value, yes or no.
 #
 AC_DEFUN([XORG_ENABLE_SPECS],[
-spec_default=$1
-if test "x$spec_default" = x ; then
-  spec_default="yes"
-fi
+m4_define([spec_default], m4_default([$1], [yes]))
 AC_ARG_ENABLE(specs,
 	AS_HELP_STRING([--enable-specs],
-	   [Enable building the specs (default: yes)]),
-	   [build_specs=$enableval], [build_specs=$spec_default])
+	   [Enable building the specs (default: ]spec_default[)]),
+	   [build_specs=$enableval], [build_specs=]spec_default)
+m4_undefine([spec_default])
 AM_CONDITIONAL(ENABLE_SPECS, [test x$build_specs = xyes])
 AC_MSG_CHECKING([whether to build functional specifications])
 AC_MSG_RESULT([$build_specs])
 ]) # XORG_ENABLE_SPECS
 
+# XORG_ENABLE_UNIT_TESTS (enable_unit_tests=auto)
+# ----------------------------------------------
+# Minimum version: 1.13.0
+#
+# This macro enables a builder to enable/disable unit testing
+# It makes no assumption about the test cases implementation
+# Test cases may or may not use Automake "Support for test suites"
+# They may or may not use the software utility library GLib
+#
+# When used in conjunction with XORG_WITH_GLIB, use both AM_CONDITIONAL
+# ENABLE_UNIT_TESTS and HAVE_GLIB. Not all unit tests may use glib.
+# The variable enable_unit_tests is used by other macros in this file.
+#
+# Interface to module:
+# ENABLE_UNIT_TESTS:	used in makefiles to conditionally build tests
+# enable_unit_tests:    used in configure.ac for additional configuration
+# --enable-unit-tests:	'yes' user instructs the module to build tests
+#			'no' user instructs the module not to build tests
+# parm1:		specify the default value, yes or no.
+#
+AC_DEFUN([XORG_ENABLE_UNIT_TESTS],[
+AC_BEFORE([$0], [XORG_WITH_GLIB])
+AC_BEFORE([$0], [XORG_LD_WRAP])
+m4_define([_defopt], m4_default([$1], [auto]))
+AC_ARG_ENABLE(unit-tests, AS_HELP_STRING([--enable-unit-tests],
+	[Enable building unit test cases (default: ]_defopt[)]),
+	[enable_unit_tests=$enableval], [enable_unit_tests=]_defopt)
+m4_undefine([_defopt])
+AM_CONDITIONAL(ENABLE_UNIT_TESTS, [test "x$enable_unit_tests" != xno])
+AC_MSG_CHECKING([whether to build unit test cases])
+AC_MSG_RESULT([$enable_unit_tests])
+]) # XORG_ENABLE_UNIT_TESTS
+
+# XORG_WITH_GLIB([MIN-VERSION], [DEFAULT])
+# ----------------------------------------
+# Minimum version: 1.13.0
+#
+# GLib is a library which provides advanced data structures and functions.
+# This macro enables a module to test for the presence of Glib.
+#
+# When used with ENABLE_UNIT_TESTS, it is assumed GLib is used for unit testing.
+# Otherwise the value of $enable_unit_tests is blank.
+#
+# Interface to module:
+# HAVE_GLIB: used in makefiles to conditionally build targets
+# with_glib: used in configure.ac to know if GLib has been found
+# --with-glib:	'yes' user instructs the module to use glib
+#		'no' user instructs the module not to use glib
+#
+AC_DEFUN([XORG_WITH_GLIB],[
+AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+m4_define([_defopt], m4_default([$2], [auto]))
+AC_ARG_WITH(glib, AS_HELP_STRING([--with-glib],
+	[Use GLib library for unit testing (default: ]_defopt[)]),
+	[with_glib=$withval], [with_glib=]_defopt)
+m4_undefine([_defopt])
+
+have_glib=no
+# Do not probe GLib if user explicitly disabled unit testing
+if test "x$enable_unit_tests" != x"no"; then
+  # Do not probe GLib if user explicitly disabled it
+  if test "x$with_glib" != x"no"; then
+    m4_ifval(
+      [$1],
+      [PKG_CHECK_MODULES([GLIB], [glib-2.0 >= $1], [have_glib=yes], [have_glib=no])],
+      [PKG_CHECK_MODULES([GLIB], [glib-2.0], [have_glib=yes], [have_glib=no])]
+    )
+  fi
+fi
+
+# Not having GLib when unit testing has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"yes"; then
+  if test "x$have_glib" = x"no"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
+  fi
+fi
+
+# Having unit testing disabled when GLib has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"no"; then
+  if test "x$with_glib" = x"yes"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but glib-2.0 not found])
+  fi
+fi
+
+# Not having GLib when it has been explicitly requested is an error
+if test "x$with_glib" = x"yes"; then
+  if test "x$have_glib" = x"no"; then
+    AC_MSG_ERROR([--with-glib=yes specified but glib-2.0 not found])
+  fi
+fi
+
+AM_CONDITIONAL([HAVE_GLIB], [test "$have_glib" = yes])
+]) # XORG_WITH_GLIB
+
+# XORG_LD_WRAP
+# ------------
+# Minimum version: 1.13.0
+#
+# Check if linker supports -wrap, passed via compiler flags
+#
+# When used with ENABLE_UNIT_TESTS, it is assumed -wrap is used for unit testing.
+# Otherwise the value of $enable_unit_tests is blank.
+#
+AC_DEFUN([XORG_LD_WRAP],[
+XORG_CHECK_LINKER_FLAGS([-Wl,-wrap,exit],[have_ld_wrap=yes],[have_ld_wrap=no])
+# Not having ld wrap when unit testing has been explicitly requested is an error
+if test "x$enable_unit_tests" = x"yes"; then
+  if test "x$have_ld_wrap" = x"no"; then
+    AC_MSG_ERROR([--enable-unit-tests=yes specified but ld -wrap support is not available])
+  fi
+fi
+AM_CONDITIONAL([HAVE_LD_WRAP], [test "$have_ld_wrap" = yes])
+#
+]) # XORG_LD_WRAP
+
+# XORG_CHECK_LINKER_FLAGS
+# -----------------------
+# SYNOPSIS
+#
+#   XORG_CHECK_LINKER_FLAGS(FLAGS, [ACTION-SUCCESS], [ACTION-FAILURE])
+#
+# DESCRIPTION
+#
+#   Check whether the given linker FLAGS work with the current language's
+#   linker, or whether they give an error.
+#
+#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
+#   success/failure.
+#
+#   NOTE: Based on AX_CHECK_COMPILER_FLAGS.
+#
+# LICENSE
+#
+#   Copyright (c) 2009 Mike Frysinger <vapier@gentoo.org>
+#   Copyright (c) 2009 Steven G. Johnson <stevenj@alum.mit.edu>
+#   Copyright (c) 2009 Matteo Frigo
+#
+#   This program is free software: you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation, either version 3 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Archive. When you make and distribute a
+#   modified version of the Autoconf Macro, you may extend this special
+#   exception to the GPL to apply to your modified version as well.#
+AC_DEFUN([XORG_CHECK_LINKER_FLAGS],
+[AC_MSG_CHECKING([whether the linker accepts $1])
+dnl Some hackery here since AC_CACHE_VAL can't handle a non-literal varname:
+AS_LITERAL_IF([$1],
+  [AC_CACHE_VAL(AS_TR_SH(xorg_cv_linker_flags_[$1]), [
+      ax_save_FLAGS=$LDFLAGS
+      LDFLAGS="$1"
+      AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+        AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
+        AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
+      LDFLAGS=$ax_save_FLAGS])],
+  [ax_save_FLAGS=$LDFLAGS
+   LDFLAGS="$1"
+   AC_LINK_IFELSE([AC_LANG_PROGRAM()],
+     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=yes,
+     eval AS_TR_SH(xorg_cv_linker_flags_[$1])=no)
+   LDFLAGS=$ax_save_FLAGS])
+eval xorg_check_linker_flags=$AS_TR_SH(xorg_cv_linker_flags_[$1])
+AC_MSG_RESULT($xorg_check_linker_flags)
+if test "x$xorg_check_linker_flags" = xyes; then
+	m4_default([$2], :)
+else
+	m4_default([$3], :)
+fi
+]) # XORG_CHECK_LINKER_FLAGS
+
 # XORG_CHECK_MALLOC_ZERO
 # ----------------------
 # Minimum version: 1.0.0
@@ -1882,18 +2140,16 @@ AC_ARG_ENABLE(malloc0returnsnull,
 
 AC_MSG_CHECKING([whether malloc(0) returns NULL])
 if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then
-	AC_RUN_IFELSE([
-char *malloc();
-char *realloc();
-char *calloc();
-main() {
+	AC_RUN_IFELSE([AC_LANG_PROGRAM([
+#include <stdlib.h>
+],[
     char *m0, *r0, *c0, *p;
     m0 = malloc(0);
     p = malloc(10);
     r0 = realloc(p,0);
-    c0 = calloc(0);
-    exit(m0 == 0 || r0 == 0 || c0 == 0 ? 0 : 1);
-}],
+    c0 = calloc(0,10);
+    exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1);
+])],
 		[MALLOC_ZERO_RETURNS_NULL=yes],
 		[MALLOC_ZERO_RETURNS_NULL=no],
 		[MALLOC_ZERO_RETURNS_NULL=yes])
@@ -2173,32 +2429,28 @@ echo 'git directory not found: installing possibly empty changelog.' >&2)"
 AC_SUBST([CHANGELOG_CMD])
 ]) # XORG_CHANGELOG
 
-dnl $XdotOrg: lib/xtrans/xtrans.m4,v 1.6 2005/07/26 18:59:11 alanc Exp $
 dnl
-dnl Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
-dnl 
-dnl Permission to use, copy, modify, distribute, and sell this software and its
-dnl documentation for any purpose is hereby granted without fee, provided that
-dnl the above copyright notice appear in all copies and that both that
-dnl copyright notice and this permission notice appear in supporting
-dnl documentation.
-dnl 
-dnl The above copyright notice and this permission notice shall be included
-dnl in all copies or substantial portions of the Software.
-dnl 
-dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-dnl IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
-dnl OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-dnl ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-dnl OTHER DEALINGS IN THE SOFTWARE.
-dnl 
-dnl Except as contained in this notice, the name of the copyright holders shall
-dnl not be used in advertising or otherwise to promote the sale, use or
-dnl other dealings in this Software without prior written authorization
-dnl from the copyright holders.
-dnl 
+dnl Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
+dnl
+dnl Permission is hereby granted, free of charge, to any person obtaining a
+dnl copy of this software and associated documentation files (the "Software"),
+dnl to deal in the Software without restriction, including without limitation
+dnl the rights to use, copy, modify, merge, publish, distribute, sublicense,
+dnl and/or sell copies of the Software, and to permit persons to whom the
+dnl Software is furnished to do so, subject to the following conditions:
+dnl
+dnl The above copyright notice and this permission notice (including the next
+dnl paragraph) shall be included in all copies or substantial portions of the
+dnl Software.
+dnl
+dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+dnl IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+dnl FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+dnl THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+dnl LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+dnl FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+dnl DEALINGS IN THE SOFTWARE.
+dnl
 
 # XTRANS_TCP_FLAGS()
 # ------------------