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https://github.com/HDFGroup/hdf5.git
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Reworked the config/gnu-flags file to be more organized and robust.
This commit is contained in:
Dana Robinson
parent
59f94cd8f8
commit
924d4c01a8
164
config/gnu-flags
164
config/gnu-flags
@ -14,7 +14,7 @@
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# This file should be sourced into configure if the compiler is the
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# GNU gcc compiler or a derivative. It is careful not to do anything
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# if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes'
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# if the compiler is not GNU; otherwise 'cc_flags_set' is set to 'yes'
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#
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# Get the compiler version in a way that works for gcc
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@ -43,20 +43,21 @@ if test X = "X$cc_flags_set"; then
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echo "compiler '$CC' is GNU $cc_vendor-$cc_version"
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fi
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# Some version numbers
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# Get the compiler version numbers
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cc_vers_major=`echo $cc_version | cut -f1 -d.`
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cc_vers_minor=`echo $cc_version | cut -f2 -d.`
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cc_vers_patch=`echo $cc_version | cut -f3 -d.`
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test -n "$cc_vers_major" || cc_vers_major=0
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test -n "$cc_vers_minor" || cc_vers_minor=0
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test -n "$cc_vers_patch" || cc_vers_patch=0
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cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
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fi
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# Common GCC flags for various situations
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case "$cc_vendor-$cc_version" in
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gcc*)
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# Architecture-specific flags
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if test "X-gcc" = "X-$cc_vendor"; then
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###############################
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# Architecture-specific flags #
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###############################
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arch=
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case "$host_os-$host_cpu" in
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# FreeBSD sets the information from "uname -m" to the general machine
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@ -96,15 +97,65 @@ case "$cc_vendor-$cc_version" in
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;;
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esac
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# Host-specific flags
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case "`hostname`" in
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sleipnir.ncsa.uiuc.edu)
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arch="$arch -pipe"
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;;
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esac
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H5_CFLAGS="$H5_CFLAGS $arch"
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##############
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# Production #
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##############
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# NDEBUG is handled explicitly by the configure script
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if test $cc_vers_major -eq 4; then
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PROD_CFLAGS=
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else
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PROD_CFLAGS="-fstdarg-opt"
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fi
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#########
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# Debug #
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#########
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# NDEBUG is handled explicitly by the configure script
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# -g is handled by the symbols flags
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if test $cc_vers_major -eq 4; then
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DEBUG_CFLAGS=
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else
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DEBUG_CFLAGS="-ftrapv -fno-common"
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fi
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###########
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# Symbols #
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###########
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NO_SYMBOLS_CFLAGS="-s"
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SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
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#############
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# Profiling #
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#############
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PROFILE_CFLAGS="-pg"
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################
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# Optimization #
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################
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if test $cc_vers_major -eq 4; then
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HIGH_OPT_CFLAGS="-O3"
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DEBUG_OPT_CFLAGS=
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else
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HIGH_OPT_CFLAGS="-O3"
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DEBUG_OPT_CFLAGS="-Og"
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fi
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NO_OPT_CFLAGS="-O0"
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############
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# Warnings #
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############
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###########
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# General #
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###########
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# General flags
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#
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# Note that some of the flags listed here really should be developer
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# flags (listed in a separate variable, below) but we put them here
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# because they are not raised by the current code and we'd like to
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@ -117,81 +168,25 @@ case "$cc_vendor-$cc_version" in
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# NOTE: Disable the -Wformat-nonliteral from -Wformat=2 here and re-add
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# it to the developer flags.
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#
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H5_CFLAGS="$H5_CFLAGS $arch -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
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H5_CFLAGS="$H5_CFLAGS -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
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H5_CFLAGS="$H5_CFLAGS -Wcast-qual -Wconversion -Wdeclaration-after-statement -Wdisabled-optimization -Wfloat-equal"
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H5_CFLAGS="$H5_CFLAGS -Wformat=2 -Wno-format-nonliteral -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-include-dirs"
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H5_CFLAGS="$H5_CFLAGS -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wpacked"
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H5_CFLAGS="$H5_CFLAGS -Wredundant-decls -Wshadow -Wstrict-prototypes -Wswitch-enum -Wswitch-default"
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H5_CFLAGS="$H5_CFLAGS -Wundef -Wunused-macros -Wunsafe-loop-optimizations -Wwrite-strings"
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# Production
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# NDEBUG is handled explicitly by the configure script
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case "$cc_vendor-$cc_version" in
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gcc-4.*)
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PROD_CFLAGS=
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;;
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gcc-[56789].*)
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PROD_CFLAGS="-fstdarg-opt"
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;;
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*)
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# gcc automatically inlines based on the optimization level
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# this is just a failsafe
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PROD_CFLAGS="-finline-functions"
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;;
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esac
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######################
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# Developer warnings #
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######################
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# Debug
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# NDEBUG is handled explicitly by the configure script
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# -g is handled by the symbols flags
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case "$cc_vendor-$cc_version" in
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gcc-[56789].*)
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DEBUG_CFLAGS="-ftrapv -fno-common"
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;;
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*)
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DEBUG_CFLAGS=
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;;
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esac
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# Developer warnings (suggestions from gcc, not code problems)
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# (suggestions from gcc, not code problems)
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# NOTE: -Wformat-nonliteral added back in here (from being disabled in H5_CFLAGS)
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DEVELOPER_WARNING_CFLAGS="-Winline -Waggregate-return -Wmissing-format-attribute -Wmissing-noreturn -Wformat-nonliteral"
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NO_DEVELOPER_WARNING_CFLAGS="-Wno-inline -Wno-aggregate-return -Wno-missing-format-attribute -Wno-missing-noreturn"
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# Symbols
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NO_SYMBOLS_CFLAGS="-s"
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SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
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# Profile
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PROFILE_CFLAGS="-pg"
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# Optimization
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case "$cc_vendor-$cc_version" in
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gcc-4.*)
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HIGH_OPT_CFLAGS="-O3"
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DEBUG_OPT_CFLAGS=
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;;
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gcc-[56789].*)
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HIGH_OPT_CFLAGS="-O3"
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DEBUG_OPT_CFLAGS="-Og"
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;;
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*)
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HIGH_OPT_CFLAGS="-O"
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DEBUG_OPT_CFLAGS=
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;;
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esac
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NO_OPT_CFLAGS="-O0"
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# Flags are set
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cc_flags_set=yes
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;;
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esac
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# Version-specific GCC flags
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if test "X-gcc" = "X-$cc_vendor"; then
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#
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# Special cases
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#
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#######################
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# gcc 4 special cases #
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#######################
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# Disable warnings about using the 'long long' type w/ gcc 4.6 and earlier
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if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $$cc_vers_minor -le 6; then
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@ -221,9 +216,9 @@ if test "X-gcc" = "X-$cc_vendor"; then
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H5_CFLAGS="$H5_CFLAGS -Wvla"
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fi
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#
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# Main version-specific flags
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#
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#############################
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# Version-specific warnings #
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#############################
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# gcc 4.3
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if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 3; then
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@ -292,6 +287,11 @@ if test "X-gcc" = "X-$cc_vendor"; then
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if test $cc_vers_major -ge 9; then
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H5_CFLAGS="$H5_CFLAGS -Wattribute-alias=2 -Wmissing-profile"
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fi
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#################
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# Flags are set #
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#################
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cc_flags_set=yes
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fi
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# Clear cc info if no flags set
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