diff options
| -rw-r--r-- | config/gnu-flags | 552 |
1 files changed, 117 insertions, 435 deletions
diff --git a/config/gnu-flags b/config/gnu-flags index f401d3d..585c2b4 100644 --- a/config/gnu-flags +++ b/config/gnu-flags @@ -37,10 +37,10 @@ if test X = "X$cc_flags_set"; then 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$cc_version"; then - cc_vendor=gcc + cc_vendor=gcc fi if test "-" != "$cc_vendor-$cc_version"; then - echo "compiler '$CC' is GNU $cc_vendor-$cc_version" + echo "compiler '$CC' is GNU $cc_vendor-$cc_version" fi # Some version numbers @@ -127,29 +127,29 @@ case "$cc_vendor-$cc_version" in # Production # NDEBUG is handled explicitly by the configure script case "$cc_vendor-$cc_version" in - gcc-4.*) - PROD_CFLAGS= - ;; - gcc-[56789].*) - PROD_CFLAGS="-fstdarg-opt" - ;; - *) - # gcc automatically inlines based on the optimization level - # this is just a failsafe - PROD_CFLAGS="-finline-functions" - ;; + gcc-4.*) + PROD_CFLAGS= + ;; + gcc-[56789].*) + PROD_CFLAGS="-fstdarg-opt" + ;; + *) + # gcc automatically inlines based on the optimization level + # this is just a failsafe + PROD_CFLAGS="-finline-functions" + ;; esac # Debug # NDEBUG is handled explicitly by the configure script # -g is handled by the symbols flags case "$cc_vendor-$cc_version" in - gcc-[56789].*) - DEBUG_CFLAGS="-ftrapv -fno-common" - ;; - *) - DEBUG_CFLAGS= - ;; + gcc-[56789].*) + DEBUG_CFLAGS="-ftrapv -fno-common" + ;; + *) + DEBUG_CFLAGS= + ;; esac # Developer warnings (suggestions from gcc, not code problems) @@ -166,18 +166,18 @@ case "$cc_vendor-$cc_version" in # Optimization case "$cc_vendor-$cc_version" in - gcc-4.*) - HIGH_OPT_CFLAGS="-O3" - DEBUG_OPT_CFLAGS= - ;; - gcc-[56789].*) - HIGH_OPT_CFLAGS="-O3" - DEBUG_OPT_CFLAGS="-Og" - ;; - *) - HIGH_OPT_CFLAGS="-O" - DEBUG_OPT_CFLAGS= - ;; + gcc-4.*) + HIGH_OPT_CFLAGS="-O3" + DEBUG_OPT_CFLAGS= + ;; + gcc-[56789].*) + HIGH_OPT_CFLAGS="-O3" + DEBUG_OPT_CFLAGS="-Og" + ;; + *) + HIGH_OPT_CFLAGS="-O" + DEBUG_OPT_CFLAGS= + ;; esac NO_OPT_CFLAGS="-O0" @@ -186,434 +186,116 @@ case "$cc_vendor-$cc_version" in ;; 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 - -# When the gcc 10.x release is out, we should check for additional flags to -# include and break it out into it's own section, like the other versions -# below. -QAK - gcc-9*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - - # Append warning flags that only gcc 5.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" - - # Append warning flags that only gcc 6.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa -Wnormalized" - - # Append warning flags that only gcc 7.x+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=2" - H5_CFLAGS="$H5_CFLAGS -Walloc-zero -Walloca -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wrestrict" - - # Append warning flags that only gcc 8.x+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=4 -Wsuggest-attribute=cold -Wsuggest-attribute=malloc" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=cold -Wno-suggest-attribute=malloc" - H5_CFLAGS="$H5_CFLAGS -Wattribute-alias -Wcast-align=strict -Wshift-overflow=2" - - # Append warning flags that only gcc 9.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Wattribute-alias=2 -Wmissing-profile" - ;; - - gcc-8*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" +# Version-specific GCC flags +if test "X-gcc" = "X-$cc_vendor"; then - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - - # Append warning flags that only gcc 5.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" - - # Append warning flags that only gcc 6.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa -Wnormalized" - - # Append warning flags that only gcc 7.x+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=2" - H5_CFLAGS="$H5_CFLAGS -Walloc-zero -Walloca -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wrestrict" - - # Append warning flags that only gcc 8.x+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=4 -Wsuggest-attribute=cold -Wsuggest-attribute=malloc" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=cold -Wno-suggest-attribute=malloc" - H5_CFLAGS="$H5_CFLAGS -Wattribute-alias -Wcast-align=strict -Wshift-overflow=2" - ;; - - gcc-7*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - - # Append warning flags that only gcc 5.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" - - # Append warning flags that only gcc 6.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa -Wnormalized" - - # Append warning flags that only gcc 7.x+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=2" - H5_CFLAGS="$H5_CFLAGS -Walloc-zero -Walloca -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wrestrict" - ;; - - gcc-6*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about + # Special cases # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - - # Append warning flags that only gcc 5.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" - - # Append warning flags that only gcc 6.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa -Wnormalized" - ;; - - gcc-5*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - - # Append warning flags that only gcc 5.x+ knows about - H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" - ;; - - gcc-4.9*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - - # Append warning flags that only gcc 4.9+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdate-time" - ;; - - gcc-4.8*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init" + # Disable warnings about using the 'long long' type w/ gcc 4.6 and earlier + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $$cc_vers_minor -le 6; then + H5_CFLAGS="$H5_CFLAGS -Wno-long-long" + fi - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" + # -Wvolatile-register-var was later incorporated into -Wall and + # only needs to be specified explicitly for gcc 4.2-4.3 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $$cc_vers_minor -le 3; then + H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var" + fi - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" + # -Wstrict-aliasing was later incorporated into -Wall and + # only needs to be specified explicitly for gcc 4.5-4.6 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 5 -o $cc_vers_major -eq 4 -a $$cc_vers_minor -le 6; then + H5_CFLAGS="$H5_CFLAGS -Wstrict-aliasing" + fi - # Append warning flags that only gcc 4.8+ knows about - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" - ;; + # The non-valued form of -Wstrict-overflow is used in gcc 4.2-4.4 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $$cc_vers_minor -le 4; then + H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow" + fi - gcc-4.7*) - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) + # -Wvla was later incorporated into -Wpedantic and + # only needs to be specified explicitly for gcc 4 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2; then + H5_CFLAGS="$H5_CFLAGS -Wvla" + fi - # Append warning flags that only gcc 4.3+ knows about # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - - # Append warning flags that only gcc 4.7+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" - ;; - - gcc-4.6*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" - - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about + # Main version-specific flags # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-aliasing -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - # Append warning flags that only gcc 4.6+ knows about - H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" - DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" - NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" - ;; - - gcc-4.5*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" - - # Append warning flags that only gcc 4.2+ knows about - # (none, or incorporated in -Wall / -Wextra now) - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" - - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - - # Append warning flags that only gcc 4.5+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-aliasing -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" - ;; - - gcc-4.4*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" - - # Append warning flags that only gcc 4.2+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow" - - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -Wvla" + # gcc 4.3 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 3; then + H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560" + fi - # Append warning flags that only gcc 4.4+ knows about - H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" - ;; + # gcc 4.4 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 4; then + H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat" + fi - gcc-4.3*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" + # gcc 4.5 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 5; then + H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants" + fi - # Append warning flags that only gcc 4.1+ knows about - # -Wvolatile-register-var was later incorporated into -Wall and - # needs to be specified explicitly for gcc 4.1-4.3. - H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var" + # gcc 4.6 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 6; then + H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wtrampolines" + DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=const" + NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=const" + fi - # Append warning flags that only gcc 4.2+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow" + # gcc 4.7 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 7; then + H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance" + DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn" + NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=pure -Wno-suggest-attribute=noreturn" + fi - # Append warning flags that only gcc 4.3+ knows about - # - # Technically, variable-length arrays are part of the C99 standard, but - # we should approach them a bit cautiously... -QAK - H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wvla" - ;; + # gcc 4.8 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8; then + DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wsuggest-attribute=format" + NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format" + fi - gcc-4.2*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" + # gcc 4.9 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 9; then + H5_CFLAGS="$H5_CFLAGS -Wdate-time" + fi - # Append warning flags that only gcc 4.1+ knows about - # -Wvolatile-register-var was later incorporated into -Wall and - # needs to be specified explicitly for gcc 4.1-4.3. - H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var" + # gcc 5 + if test $cc_vers_major -ge 5; then + H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat" + fi - # Append warning flags that only gcc 4.2+ knows about - H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow" - ;; + # gcc 6 + if test $cc_vers_major -ge 6; then + H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa -Wnormalized" + fi - gcc-4.1*) - # Disable warnings about using 'long long' type - H5_CFLAGS="$H5_CFLAGS -Wno-long-long" + # gcc 7 + if test $cc_vers_major -ge 7; then + DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=2" + H5_CFLAGS="$H5_CFLAGS -Walloc-zero -Walloca -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wrestrict" + fi - # Append warning flags that only gcc 4.1+ knows about - # -Wvolatile-register-var was later incorporated into -Wall and - # needs to be specified explicitly for gcc 4.1-4.3. - H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var" - ;; + # gcc 8 + if test $cc_vers_major -ge 8; then + DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS -Wstringop-overflow=4 -Wsuggest-attribute=cold -Wsuggest-attribute=malloc" + NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=cold -Wno-suggest-attribute=malloc" + H5_CFLAGS="$H5_CFLAGS -Wattribute-alias -Wcast-align=strict -Wshift-overflow=2" + fi -esac + # gcc 9 + if test $cc_vers_major -ge 9; then + H5_CFLAGS="$H5_CFLAGS -Wattribute-alias=2 -Wmissing-profile" + fi +fi # Clear cc info if no flags set if test "X$cc_flags_set" = "X"; then - cc_vendor= - cc_version= + cc_vendor= + cc_version= fi |