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It is careful not to do anything # if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes' # # Get the compiler version in a way that works for gcc, egcs, and # pgcc unless a compiler version is already known # # cc_vendor: The compiler name: gcc, egcs, or pgcc # cc_version: Version number: 2.91.60, 2.7.2.1 # if test X = "X$cc_flags_set"; then cc_version="`$CC $CFLAGS -v 2>&1 |grep 'gcc version' |\ sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`" cc_vendor=`echo $cc_version |sed 's/\([a-z]*\).*/\1/'` cc_version=`echo $cc_version |sed 's/[-a-z]//g'` if test X = "X$cc_vendor" -a X != "X$cc_version"; then cc_vendor=gcc fi if test "-" != "$cc_vendor-$cc_version"; then echo "compiler '$CC' is GNU $cc_vendor-$cc_version" fi # Some version numbers cc_vers_major=`echo $cc_version | cut -f1 -d.` cc_vers_minor=`echo $cc_version | cut -f2 -d.` cc_vers_patch=`echo $cc_version | cut -f3 -d.` test -n "$cc_vers_major" || cc_vers_major=0 test -n "$cc_vers_minor" || cc_vers_minor=0 test -n "$cc_vers_patch" || cc_vers_patch=0 cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch` fi # GCC compilers before gcc-2.8.1 have problems with `long long'. if test gcc = "$cc_vendor" -a "$cc_vers_all" -lt 2008001; then cat < `double' conversions. elif test gcc = "$cc_vendor" -a "$cc_vers_all" -eq 2096000; then cat < long long conversions in the test/dtypes test). Perhaps # later versions of gcc will fix this bug... - QAK - 2003/10/20 PROD_CFLAGS="-O" ;; gcc-4*) # Be optimistic about future versions of gcc.. :-) - QAK - 2003/10/20 PROD_CFLAGS="-O3" ;; *) PROD_CFLAGS="-O" ;; esac PROD_CFLAGS="$PROD_CFLAGS -fomit-frame-pointer -finline-functions" PROD_CPPFLAGS= # Debug DEBUG_CFLAGS="-g -fverbose-asm -pedantic -Wall -W -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align -Wwrite-strings -Wconversion -Wsign-compare -Waggregate-return -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls -Wnested-externs -Winline" DEBUG_CPPFLAGS= # Profile PROFILE_CFLAGS="-g -pg" PROFILE_CPPFLAGS= # Flags are set cc_flags_set=yes ;; esac # Version specific GCC flags # # Please follow the pattern below by adding new versions at the top, copying # the information from the previous version and adding modifications to that. case "$cc_vendor-$cc_version" in # Closer to the gcc 4.1 release, we should check for additional flags to # include and break it out into it's own section, like the other versions # below. -QAK gcc-4.[01]*) # Replace -ansi flag with -std=c99 flag CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`" # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" # Append warning flags from gcc-3* case # (don't use -Wpadded flag for normal builds, many of the warnings its # issuing can't be fixed and they are making it hard to detect other, # more important warnings) #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded" DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute" # Append warning flags from gcc-3.2* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar" # The "format=2" warning generates too many warnings about valid # usage in the library. #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wformat=2" # The "unreachable code" warning does not appear to be reliable yet... #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wunreachable-code" # Append warning flags from gcc-3.3* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wendif-labels" # Append warning flags from gcc-3.4* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wdeclaration-after-statement -Wold-style-definition -Winvalid-pch" # Replace old -W flag with new -Wextra flag DEBUG_CFLAGS="`echo $DEBUG_CFLAGS | sed -e 's/-W\ /-Wextra\ /g'`" # Append more extra warning flags that only gcc4.0+ know about DEBUG_CFLAGS="$DEBUG_CFLAGS -Wvariadic-macros" ;; gcc-3.4*) # Replace -ansi flag with -std=c99 flag CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`" # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" # Append warning flags from gcc-3* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded" # Append warning flags from gcc-3.2* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar" # The "format=2" warning generates too many warnings about valid # usage in the library. #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wformat=2" # The "unreachable code" warning does not appear to be reliable yet... #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wunreachable-code" # Append warning flags from gcc-3.3* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wendif-labels" # Append more extra warning flags that only gcc3.4+ know about DEBUG_CFLAGS="$DEBUG_CFLAGS -Wdeclaration-after-statement -Wold-style-definition -Winvalid-pch" # Replace old -W flag with new -Wextra flag DEBUG_CFLAGS="`echo $DEBUG_CFLAGS | sed -e 's/-W\ /-Wextra\ /g'`" ;; gcc-3.3*) # Replace -ansi flag with -std=c99 flag CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`" # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" # Append warning flags from gcc-3* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded" # Append warning flags from gcc-3.2* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar" # The "format=2" warning generates too many warnings about valid # usage in the library. #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wformat=2" # The "unreachable code" warning does not appear to be reliable yet... #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wunreachable-code" # Append more extra warning flags that only gcc3.3+ know about DEBUG_CFLAGS="$DEBUG_CFLAGS -Wendif-labels" ;; gcc-3.2*) # Replace -ansi flag with -std=c99 flag CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`" # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" # Append warning flags from gcc-3* case DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded" # Append more extra warning flags that only gcc3.2+ know about DEBUG_CFLAGS="$DEBUG_CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wmultichar" # The "format=2" warning generates too many warnings about valid # usage in the library. #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wformat=2" # The "unreachable code" warning does not appear to be reliable yet... #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wunreachable-code" ;; gcc-3*) # Replace -ansi flag with -std=c99 flag CFLAGS="`echo $CFLAGS | sed -e 's/-ansi/-std=c99/g'`" # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" # Append some extra warning flags that only gcc3+ know about DEBUG_CFLAGS="$DEBUG_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded" ;; gcc-2.9[56]*) # Disable warnings about using 'long long' type CFLAGS="$CFLAGS -Wno-long-long" ;; esac # Clear cc info if no flags set if test "X$cc_flags_set" = "X"; then cc_vendor= cc_version= fi