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-rw-r--r--config/gnu-flags552
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