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-rw-r--r--config/gnu-flags83
1 files changed, 77 insertions, 6 deletions
diff --git a/config/gnu-flags b/config/gnu-flags
index 40aa1da..a79cc72 100644
--- a/config/gnu-flags
+++ b/config/gnu-flags
@@ -186,10 +186,10 @@ esac
# the information from the previous version and adding modifications to that.
case "$cc_vendor-$cc_version" in
-# Closer to the gcc 4.8 release, we should check for additional flags to
+# Closer to the gcc 4.9 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.[78]*)
+ gcc-4.[89]*)
# Replace -ansi flag with -std=c99 flag
H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
@@ -252,7 +252,81 @@ case "$cc_vendor-$cc_version" in
H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wsuggest-attribute=const -Wtrampolines"
# Append more extra warning flags that only gcc 4.7+ know about
- H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance"
+ H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
+
+ # Append more extra warning flags that only gcc 4.8+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wsuggest-attribute=format"
+
+ # Try out the new "stack protector" feature in gcc 4.1
+ # (Strictly speaking this isn't really a "warning" flag, so it's added to
+ # the debugging flags)
+ #DEBUG_CFLAGS="$DEBUG_CFLAGS -Wstack-protector -fstack-protector-all"
+ ;;
+
+ gcc-4.7*)
+ # Replace -ansi flag with -std=c99 flag
+ H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
+
+ # Append warning flags
+ # Don't use the '-Wtraditional' flag, we're way past having K&R C code
+ # H5_CFLAGS="$H5_CFLAGS -Wtraditional"
+ # Don't use the '-Wtraditional-conversion' flag, there's too many warnings
+ # from GCC's assert macro
+ # H5_CFLAGS="$H5_CFLAGS -Wtraditional-conversion"
+
+ # Append warning flags from gcc-3* case
+ # (don't use -Wpadded flag for normal builds, many of the warnings its
+ # issuing can't be fixed and they are making it hard to detect other,
+ # more important warnings)
+ #H5_CFLAGS="$H5_CFLAGS -Wfloat-equal -Wmissing-format-attribute -Wpadded"
+ H5_CFLAGS="$H5_CFLAGS -Wfloat-equal -Wmissing-format-attribute"
+
+ # Append warning flags from gcc-3.2* case
+ H5_CFLAGS="$H5_CFLAGS -Wmissing-noreturn -Wpacked -Wdisabled-optimization"
+
+ # Enable more format checking flags, beyond the basic -Wformat included
+ # in -Wall
+ H5_CFLAGS="$H5_CFLAGS -Wformat=2"
+
+ # The "unreachable code" warning appears to be reliable now...
+ # (this warning was removed in gcc 4.5+)
+ #H5_CFLAGS="$H5_CFLAGS -Wunreachable-code"
+
+ # Append warning flags from gcc-3.3* case
+ H5_CFLAGS="$H5_CFLAGS -Wendif-labels"
+
+ # Append warning flags from gcc-3.4* case
+ H5_CFLAGS="$H5_CFLAGS -Wdeclaration-after-statement -Wold-style-definition -Winvalid-pch"
+
+ # Replace old -W flag with new -Wextra flag
+ H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-W\ /-Wextra\ /g'`"
+
+ # Append more extra warning flags that only gcc4.0+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wvariadic-macros -Winit-self -Wmissing-include-dirs -Wswitch-default -Wswitch-enum -Wunused-macros"
+
+ # Append more extra warning flags that only gcc 4.1+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wunsafe-loop-optimizations -Wc++-compat"
+
+ # Append more extra warning flags that only gcc 4.2+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow"
+
+ # Append more extra warning flags that only gcc 4.3+ know about
+ #
+ # Technically, variable-length arrays are part of the C99 standard, but
+ # we should approach them a bit cautiously... -QAK
+ H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
+
+ # Append more extra warning flags that only gcc 4.4+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
+
+ # Append more extra warning flags that only gcc 4.5+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants"
+
+ # Append more extra warning flags that only gcc 4.6+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wdouble-promotion -Wsuggest-attribute=const -Wtrampolines"
+
+ # Append more extra warning flags that only gcc 4.7+ know about
+ H5_CFLAGS="$H5_CFLAGS -Wstack-usage=8192 -Wvector-operation-performance -Wsuggest-attribute=pure -Wsuggest-attribute=noreturn"
# Try out the new "stack protector" feature in gcc 4.1
# (Strictly speaking this isn't really a "warning" flag, so it's added to
@@ -260,9 +334,6 @@ case "$cc_vendor-$cc_version" in
#DEBUG_CFLAGS="$DEBUG_CFLAGS -Wstack-protector -fstack-protector-all"
;;
-# Closer to the gcc 4.7 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-4.6*)
# Replace -ansi flag with -std=c99 flag
H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-ansi/-std=c99/g'`"