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