Merge pull request #1797 in HDFFV/hdf5 from ~DEROBINS/hdf5_der:gnu-flags-work to develop

* commit 'd5031a55192ac6b8ca81a0e5315cb4739af98896':
  Removed support for gcc 4.3 and earlier.
  Fix errant quotes
  * Fixed a bug in the gcc warning parsing * Changed version parsing from == gcc 4.x to < to handle ancient compilers.
  Reworked the config/gnu-flags file to be more organized and robust.
  Converted duplicated flags code to a set of if statements.
This commit is contained in:
Dana Robinson 2019-07-15 11:09:11 -05:00
commit 6816d5b2e7

View File

@ -14,7 +14,7 @@
# This file should be sourced into configure if the compiler is the
# GNU gcc compiler or a derivative. It is careful not to do anything
# if the compiler is not GNU; otherwise `cc_flags_set' is set to `yes'
# if the compiler is not GNU; otherwise 'cc_flags_set' is set to 'yes'
#
# Get the compiler version in a way that works for gcc
@ -23,7 +23,7 @@
# cc_vendor: The compiler name: gcc
# cc_version: Version number: 2.91.60, 2.7.2.1
#
if test X = "X$cc_flags_set"; then
if test "X-" = "X-$cc_flags_set"; then
# PathScale compiler spits out gcc version string too. Need to
# filter it out.
# icc beginning with version 12 includes a "gcc version compatiblilty"
@ -37,26 +37,27 @@ 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
# Get the compiler version numbers
cc_vers_major=`echo $cc_version | cut -f1 -d.`
cc_vers_minor=`echo $cc_version | cut -f2 -d.`
cc_vers_patch=`echo $cc_version | cut -f3 -d.`
test -n "$cc_vers_major" || cc_vers_major=0
test -n "$cc_vers_minor" || cc_vers_minor=0
test -n "$cc_vers_patch" || cc_vers_patch=0
cc_vers_all=`expr $cc_vers_major '*' 1000000 + $cc_vers_minor '*' 1000 + $cc_vers_patch`
fi
# Common GCC flags for various situations
case "$cc_vendor-$cc_version" in
gcc*)
# Architecture-specific flags
if test "X-gcc" = "X-$cc_vendor"; then
###############################
# Architecture-specific flags #
###############################
arch=
case "$host_os-$host_cpu" in
# FreeBSD sets the information from "uname -m" to the general machine
@ -96,15 +97,65 @@ case "$cc_vendor-$cc_version" in
;;
esac
# Host-specific flags
case "`hostname`" in
sleipnir.ncsa.uiuc.edu)
arch="$arch -pipe"
;;
esac
H5_CFLAGS="$H5_CFLAGS $arch"
##############
# Production #
##############
# NDEBUG is handled explicitly by the configure script
if test $cc_vers_major -le 4; then
PROD_CFLAGS=
else
PROD_CFLAGS="-fstdarg-opt"
fi
#########
# Debug #
#########
# NDEBUG is handled explicitly by the configure script
# -g is handled by the symbols flags
if test $cc_vers_major -le 4; then
DEBUG_CFLAGS=
else
DEBUG_CFLAGS="-ftrapv -fno-common"
fi
###########
# Symbols #
###########
NO_SYMBOLS_CFLAGS="-s"
SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
#############
# Profiling #
#############
PROFILE_CFLAGS="-pg"
################
# Optimization #
################
if test $cc_vers_major -le 4; then
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS=
else
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS="-Og"
fi
NO_OPT_CFLAGS="-O0"
############
# Warnings #
############
###########
# General #
###########
# General flags
#
# Note that some of the flags listed here really should be developer
# flags (listed in a separate variable, below) but we put them here
# because they are not raised by the current code and we'd like to
@ -117,503 +168,124 @@ case "$cc_vendor-$cc_version" in
# NOTE: Disable the -Wformat-nonliteral from -Wformat=2 here and re-add
# it to the developer flags.
#
H5_CFLAGS="$H5_CFLAGS $arch -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
H5_CFLAGS="$H5_CFLAGS -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
H5_CFLAGS="$H5_CFLAGS -Wcast-qual -Wconversion -Wdeclaration-after-statement -Wdisabled-optimization -Wfloat-equal"
H5_CFLAGS="$H5_CFLAGS -Wformat=2 -Wno-format-nonliteral -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-include-dirs"
H5_CFLAGS="$H5_CFLAGS -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wpacked"
H5_CFLAGS="$H5_CFLAGS -Wredundant-decls -Wshadow -Wstrict-prototypes -Wswitch-enum -Wswitch-default"
H5_CFLAGS="$H5_CFLAGS -Wundef -Wunused-macros -Wunsafe-loop-optimizations -Wwrite-strings"
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560"
# 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"
;;
esac
######################
# Developer warnings #
######################
# 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=
;;
esac
# Developer warnings (suggestions from gcc, not code problems)
# (suggestions from gcc, not code problems)
# NOTE: -Wformat-nonliteral added back in here (from being disabled in H5_CFLAGS)
DEVELOPER_WARNING_CFLAGS="-Winline -Waggregate-return -Wmissing-format-attribute -Wmissing-noreturn -Wformat-nonliteral"
NO_DEVELOPER_WARNING_CFLAGS="-Wno-inline -Wno-aggregate-return -Wno-missing-format-attribute -Wno-missing-noreturn"
# Symbols
NO_SYMBOLS_CFLAGS="-s"
SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
#######################
# gcc 4 special cases #
#######################
# Profile
PROFILE_CFLAGS="-pg"
# 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
# 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=
;;
esac
NO_OPT_CFLAGS="-O0"
# -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
# Flags are set
# 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
# -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
#############################
# Version-specific warnings #
#############################
# 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 4.5
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
# 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
# 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
# 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 4.9
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
# gcc 5
if test $cc_vers_major -ge 5; then
H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat"
fi
# 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 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
# 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
# gcc 9
if test $cc_vers_major -ge 9; then
H5_CFLAGS="$H5_CFLAGS -Wattribute-alias=2 -Wmissing-profile"
fi
#################
# Flags are set #
#################
cc_flags_set=yes
;;
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="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
# Append warning flags that only gcc 4.9+ knows about
H5_CFLAGS="$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="$H5_CFLAGS -Walloc-zero -Walloca -Wduplicated-branches -Wformat-overflow=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wrestrict"
;;
gcc-6*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$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="$H5_CFLAGS -Wstrict-overflow=5 -Wjump-misses-init"
# Append warning flags that only gcc 4.6+ knows about
H5_CFLAGS="$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="$NO_DEVELOPER_WARNING_CFLAGS -Wno-suggest-attribute=format"
;;
gcc-4.7*)
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2560 -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="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.2+ knows about
# (none, or incorporated in -Wall / -Wextra now)
# Append warning flags that only gcc 4.3+ knows about
#
# Technically, variable-length arrays are part of the C99 standard, but
# we should approach them a bit cautiously... -QAK
H5_CFLAGS="$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"
# Append warning flags that only gcc 4.4+ knows about
H5_CFLAGS="$H5_CFLAGS -Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat"
;;
gcc-4.3*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# 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="$H5_CFLAGS -Wvolatile-register-var"
# Append warning flags that only gcc 4.2+ knows about
H5_CFLAGS="$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="$H5_CFLAGS -Wlogical-op -Wvla"
;;
gcc-4.2*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# 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="$H5_CFLAGS -Wvolatile-register-var"
# Append warning flags that only gcc 4.2+ knows about
H5_CFLAGS="$H5_CFLAGS -Wstrict-overflow"
;;
gcc-4.1*)
# Disable warnings about using 'long long' type
H5_CFLAGS="$H5_CFLAGS -Wno-long-long"
# Append warning flags that only gcc 4.1+ knows about
# -Wvolatile-register-var was later incorporated into -Wall and
# needs to be specified explicitly for gcc 4.1-4.3.
H5_CFLAGS="$H5_CFLAGS -Wvolatile-register-var"
;;
esac
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