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[svn-r18605] Description:

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Add new warning flags for gcc 4.5.x

Tested on:
    FreeBSD/32 6.3 (duty) w/gcc 4.5
    FreeBSD/64 6.3 (liberty) w/gcc 4.5
This commit is contained in:
Quincey Koziol 2010-04-22 05:58:27 -05:00
parent 59941cf993
commit e059d5bcb3
1 changed files with 65 additions and 4 deletions
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69
config/gnu-flags
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@ -147,8 +147,8 @@ case "$cc_vendor-$cc_version" in
gcc-2.95.[34])
PROD_CFLAGS="-O3"
;;
gcc-4.[34]*)
# The optimization level is reduced for gcc 4.[34] due to problems
gcc-4.[345]*)
# The optimization level is reduced for gcc 4.[345] due to problems
# with code generation for src/H5Tconv.c with the -O (same -O1)
# optimization levels (which shows up as failures for long double
# types -> signed char conversion in the test/dt_arith test).
@ -192,10 +192,71 @@ esac
# the information from the previous version and adding modifications to that.
case "$cc_vendor-$cc_version" in
# Closer to the gcc 4.5 release, we should check for additional flags to
# Closer to the gcc 4.6 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.[45]*)
gcc-4.[56]*)
# Replace -ansi flag with -std=c99 flag
H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-ansi/-std=c99/g'`"
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_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)
#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 -Wnonnull -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="$H5_CFLAGS -Wjump-misses-init -Wunsuffixed-float-constants -Wunused-result"
# Try out the new "stack protector" feature in gcc 4.1
# (Strictly speaking this isn't really a "warning" flag, so it's added to
# the debugging flags)
#DEBUG_CFLAGS="$DEBUG_CFLAGS -Wstack-protector -fstack-protector-all"
;;
gcc-4.4*)
# Replace -ansi flag with -std=c99 flag
H5_CFLAGS="`echo $H5_CFLAGS | sed -e 's/-ansi/-std=c99/g'`"