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|
# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.
# gcc 2.7.2.3, 2.8.1, 2.95.4, egcs-1.1.2
# 3.0.4, 3.1.1, 3.2.3, 3.3.2, 3.3.3, 3.3.4, 3.4.0, 3.4.2
# 4.0.0, 4.0.1, 4.1.0
NGX_GCC_VER=`$CC -v 2>&1 | grep 'gcc version' 2>&1 \
| sed -e 's/^.* version \(.*\)/\1/'`
echo " + gcc version: $NGX_GCC_VER"
have=NGX_COMPILER value="\"gcc $NGX_GCC_VER\"" . auto/define
# Solaris 7's /usr/ccs/bin/as does not support "-pipe"
CC_TEST_FLAGS="-pipe"
ngx_feature="gcc -pipe switch"
ngx_feature_name=
ngx_feature_run=no
ngx_feature_incs=
ngx_feature_path=
ngx_feature_libs=
ngx_feature_test=
. auto/feature
CC_TEST_FLAGS=
#if [ $ngx_found = yes ]; then
# PIPE="-pipe"
#fi
case "$NGX_MACHINE" in
sun4u | sun4v | sparc | sparc64 )
# "-mcpu=v9" enables the "casa" assembler instruction
CFLAGS="$CFLAGS -mcpu=v9"
;;
esac
# optimizations
#NGX_GCC_OPT="-O2"
#NGX_GCC_OPT="-Os"
NGX_GCC_OPT="$OPTIM"
#CFLAGS="$CFLAGS -fomit-frame-pointer"
case $CPU in
pentium)
# optimize for Pentium and Athlon
CPU_OPT="-march=pentium"
NGX_CPU_CACHE_LINE=32
;;
pentiumpro | pentium3)
# optimize for Pentium Pro, Pentium II and Pentium III
CPU_OPT="-march=pentiumpro"
NGX_CPU_CACHE_LINE=32
;;
pentium4)
# optimize for Pentium 4, gcc 3.x
CPU_OPT="-march=pentium4"
NGX_CPU_CACHE_LINE=128
;;
athlon)
# optimize for Athlon, gcc 3.x
CPU_OPT="-march=athlon"
NGX_CPU_CACHE_LINE=64
;;
opteron)
# optimize for Opteron, gcc 3.x
CPU_OPT="-march=opteron"
NGX_CPU_CACHE_LINE=64
;;
sparc32)
# build 32-bit UltraSparc binary
CPU_OPT="-m32"
CORE_LINK="$CORE_LINK -m32"
NGX_CPU_CACHE_LINE=64
;;
sparc64)
# build 64-bit UltraSparc binary
CPU_OPT="-m64"
CORE_LINK="$CORE_LINK -m64"
NGX_CPU_CACHE_LINE=64
;;
ppc64)
# build 64-bit PowerPC binary
CPU_OPT="-m64"
CPU_OPT="$CPU_OPT -falign-functions=32 -falign-labels=32"
CPU_OPT="$CPU_OPT -falign-loops=32 -falign-jumps=32"
CORE_LINK="$CORE_LINK -m64"
NGX_CPU_CACHE_LINE=128
;;
esac
CC_AUX_FLAGS="$CC_AUX_FLAGS $CPU_OPT"
case "$NGX_GCC_VER" in
2.7*)
# batch build
CPU_OPT=
;;
esac
CFLAGS="$CFLAGS $PIPE $CPU_OPT"
if [ ".$PCRE_OPT" = "." ]; then
PCRE_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
else
PCRE_OPT="$PCRE_OPT $PIPE"
fi
if [ ".$MD5_OPT" = "." ]; then
MD5_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
else
MD5_OPT="$MD5_OPT $PIPE"
fi
if [ ".$ZLIB_OPT" = "." ]; then
ZLIB_OPT="-O2 -fomit-frame-pointer $PIPE $CPU_OPT"
else
ZLIB_OPT="$ZLIB_OPT $PIPE"
fi
# warnings
# -W requires at least -O
CFLAGS="$CFLAGS ${NGX_GCC_OPT:--O} -W"
CFLAGS="$CFLAGS -Wall -Wpointer-arith"
#CFLAGS="$CFLAGS -Wconversion"
#CFLAGS="$CFLAGS -Winline"
case "$NGX_GCC_VER" in
3.* | 4.* )
# we have a lot of the unused function arguments
CFLAGS="$CFLAGS -Wno-unused-parameter"
CFLAGS="$CFLAGS -Wunused-function"
CFLAGS="$CFLAGS -Wunused-variable"
CFLAGS="$CFLAGS -Wunused-value"
# 4.2.1 shows the warning in wrong places
#CFLAGS="$CFLAGS -Wunreachable-code"
;;
*)
# we have a lot of the unused function arguments
CFLAGS="$CFLAGS -Wno-unused"
;;
esac
# stop on warning
CFLAGS="$CFLAGS -Werror"
# debug
CFLAGS="$CFLAGS -g"
# DragonFly's gcc3 generates DWARF
#CFLAGS="$CFLAGS -g -gstabs"
if [ ".$CPP" = "." ]; then
CPP="$CC -E"
fi
|
