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-rw-r--r--config/gnu-flags525
1 files changed, 168 insertions, 357 deletions
diff --git a/config/gnu-flags b/config/gnu-flags
index 2f2e428..7cf90b8 100644
--- a/config/gnu-flags
+++ b/config/gnu-flags
@@ -1,4 +1,4 @@
-# -*- shell-script -*-
+# -*- shell-script -*-
#
# Copyright by The HDF Group.
# Copyright by the Board of Trustees of the University of Illinois.
@@ -14,16 +14,48 @@
# 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'
#
+#
+# For now, do not promote any warnings to errors.
+#
+PROMOTE_ERRORS_DFLT=no
+
+#
+# This filter rewrites -Werror= as -W, in that way demoting warnings
+# promoted to errors back to warnings, if PROMOTE_ERRORS is no.
+#
+demote_errors()
+{
+ if [ ${PROMOTE_ERRORS:-${PROMOTE_ERRORS_DFLT}} = no ]; then
+ sed 's,-Werror=,-W,g'
+ else
+ cat
+ fi
+}
+
+#
+# Prepend `$srcdir/config/gnu-warnings/` to the filename suffix(es) given as
+# subroutine argument(s), remove comments starting with # and ending
+# at EOL, replace spans of whitespace (including newlines) with spaces,
+# and re-emit the file(s) thus filtered on the standard output stream.
+#
+load_gnu_arguments()
+{
+ set -- $(for arg; do
+ sed 's,#.*$,,' $srcdir/config/gnu-warnings/${arg}
+ done)
+ IFS=' ' echo "$*"
+}
+
# Get the compiler version in a way that works for gcc
# unless a compiler version is already known
#
# cc_vendor: The compiler name: gcc
# cc_version: Version number: 2.91.60, 2.7.2.1
#
-if test X = "X$cc_flags_set"; then
+if test "X-" = "X-$cc_flags_set"; then
# PathScale compiler spits out gcc version string too. Need to
# filter it out.
# icc beginning with version 12 includes a "gcc version compatiblilty"
@@ -32,31 +64,32 @@ if test X = "X$cc_flags_set"; then
# containing 'icc version'. The cc_version for icc is correctly determined
# and flags added in the intel-flags script.
cc_version="`$CC $CFLAGS $H5_CFLAGS -v 2>&1 | grep -v 'PathScale' |\
- grep -v 'icc version' |\
+ grep -v '^icc.*version' |\
grep 'gcc version' | sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`"
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
@@ -84,377 +117,155 @@ case "$cc_vendor-$cc_version" in
;;
esac
- # Host-specific flags
- case "`hostname`" in
- sleipnir.ncsa.uiuc.edu)
- arch="$arch -pipe"
+ case "$host_os-$host_cpu" in
+ # cygwin needs the "-std=c99" flag removed, so make
+ # a specific case for Cygwin without the flag and a default
+ # case to add the flag everywhere else
+ cygwin-*)
+ ;;
+
+ *)
+ H5_CFLAGS="$H5_CFLAGS -std=c99"
;;
esac
- # 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
- # know if they do start showing up.
- #
- # NOTE: Don't add -Wpadded here since we can't/won't fix the (many)
- # warnings that are emitted. If you need it, add it from the
- # environment variable at configure time.
- H5_CFLAGS="$H5_CFLAGS $arch -std=c99 -pedantic -Wall -Wextra -Wbad-function-cast -Wc++-compat -Wcast-align"
- H5_CFLAGS="$H5_CFLAGS -Wcast-qual -Wconversion -Wdeclaration-after-statement -Wdisabled-optimization -Wfloat-equal"
- H5_CFLAGS="$H5_CFLAGS -Wformat=2 -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-include-dirs"
- H5_CFLAGS="$H5_CFLAGS -Wmissing-prototypes -Wnested-externs -Wold-style-definition -Wpacked -Wpointer-arith"
- H5_CFLAGS="$H5_CFLAGS -Wredundant-decls -Wshadow -Wstrict-prototypes -Wswitch-default -Wswitch-enum"
- H5_CFLAGS="$H5_CFLAGS -Wundef -Wunused-macros -Wunsafe-loop-optimizations -Wwrite-strings"
-
- # Production
+ H5_CFLAGS="$H5_CFLAGS $arch"
+
+ ##############
+ # Production #
+ ##############
+
# NDEBUG is handled explicitly by the configure script
- case "$cc_vendor-$cc_version" in
- gcc-4.*)
+ if test $cc_vers_major -le 4; then
PROD_CFLAGS=
- ;;
- gcc-[56].*)
+ else
PROD_CFLAGS="-fstdarg-opt"
- ;;
- *)
- # gcc automatically inlines based on the optimization level
- # this is just a failsafe
- PROD_CFLAGS="-finline-functions"
- ;;
- esac
+ fi
+
+ #########
+ # Debug #
+ #########
- # Debug
# NDEBUG is handled explicitly by the configure script
# -g is handled by the symbols flags
- case "$cc_vendor-$cc_version" in
- gcc-[56].*)
- DEBUG_CFLAGS="-ftrapv -fno-common"
- ;;
- *)
+ if test $cc_vers_major -le 4; then
DEBUG_CFLAGS=
- ;;
- esac
+ else
+ DEBUG_CFLAGS="-ftrapv -fno-common"
+ fi
- # Developer warnings (suggestions from gcc, not code problems)
- DEVELOPER_WARNING_CFLAGS="-Winline -Waggregate-return -Wmissing-format-attribute -Wmissing-noreturn"
- NO_DEVELOPER_WARNING_CFLAGS="-Wno-inline -Wno-aggregate-return -Wno-missing-format-attribute -Wno-missing-noreturn"
+ ###########
+ # Symbols #
+ ###########
- # Symbols
NO_SYMBOLS_CFLAGS="-s"
SYMBOLS_CFLAGS="-g -fno-omit-frame-pointer"
- # Profile
+ #############
+ # Profiling #
+ #############
+
PROFILE_CFLAGS="-pg"
- # Optimization
- case "$cc_vendor-$cc_version" in
- gcc-4.*)
+ ################
+ # Optimization #
+ ################
+
+ if test $cc_vers_major -le 4; then
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS=
- ;;
- gcc-[56].*)
+ else
HIGH_OPT_CFLAGS="-O3"
DEBUG_OPT_CFLAGS="-Og"
- ;;
- *)
- HIGH_OPT_CFLAGS="-O"
- DEBUG_OPT_CFLAGS=
- ;;
- esac
+ fi
NO_OPT_CFLAGS="-O0"
- # Flags are set
- cc_flags_set=yes
- ;;
-esac
+ ############
+ # Warnings #
+ ############
-# Version specific GCC flags
-#
-# Please follow the pattern below by adding new versions at the top, copying
-# the information from the previous version and adding modifications to that.
-case "$cc_vendor-$cc_version" in
-
-# When the gcc 7.x release is out, we should check for additional flags to
-# include and break it out into it's own section, like the other versions
-# below. -QAK
- gcc-6*)
- # Append warning flags that only gcc 4.2+ knows about
- # (none, or incorporated in -Wall / -Wextra now)
-
- # Append warning flags that only gcc 4.3+ knows about
- #
- # Technically, variable-length arrays are part of the C99 standard, but
- # we should approach them a bit cautiously... -QAK
- H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -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="$H5_CFLAGS -Wdate-time"
-
- # Append warning flags that only gcc 5.x+ knows about
- H5_CFLAGS="$H5_CFLAGS -Warray-bounds=2 -Wc99-c11-compat"
-
- # Append warning flags that only gcc 6.x+ knows about
- H5_CFLAGS="$H5_CFLAGS -Wnull-dereference -Wunused-const-variable -Wduplicated-cond -Whsa"
- ;;
-
- gcc-5*)
- # Append warning flags that only gcc 4.2+ knows about
- # (none, or incorporated in -Wall / -Wextra now)
-
- # Append warning flags that only gcc 4.3+ knows about
- #
- # Technically, variable-length arrays are part of the C99 standard, but
- # we should approach them a bit cautiously... -QAK
- H5_CFLAGS="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -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="$H5_CFLAGS -Wdate-time"
-
- # Append warning flags that only gcc 5.x+ knows about
- H5_CFLAGS="$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="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
-
- # Append warning flags that only gcc 4.4+ knows about
- H5_CFLAGS="$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="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
-
- # Append warning flags that only gcc 4.4+ knows about
- H5_CFLAGS="$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=2048 -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=2048 -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="$H5_CFLAGS -Wlogical-op -Wlarger-than=2048 -Wvla"
-
- # Append warning flags that only gcc 4.4+ knows about
- H5_CFLAGS="$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=2048 -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"
- ;;
+ ###########
+ # General #
+ ###########
+
+ # Add various general warning flags in gnu-warnings for gcc versions 4.8 and later.
+ if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8 -o $cc_vers_major -gt 4; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments general)"
+ H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-general)"
+
+ ######################
+ # Developer warnings #
+ ######################
+
+ NO_DEVELOPER_WARNING_CFLAGS=$(load_gnu_arguments no-developer-general)
+ DEVELOPER_WARNING_CFLAGS=$(load_gnu_arguments developer-general)
+
+ fi
+
+ #######################
+ # gcc 4 special cases #
+ #######################
+
+ # GCC 4.8 through the end of GCC 4 series
+ if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 4.8-4.last)"
+ fi
+
+ #############################
+ # Version-specific warnings #
+ #############################
+
+ # gcc >= 4.8
+ if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 4.8)"
+ DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments developer-4.8)"
+ NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments no-developer-4.8)"
+ 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 $(load_gnu_arguments 4.9)"
+ fi
+
+ # gcc >= 5
+ if test $cc_vers_major -ge 5; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 5)"
+ H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-5)"
+ fi
+
+ # gcc >= 6
+ if test $cc_vers_major -ge 6; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 6)"
+ fi
+
+ # gcc >= 7
+ if test $cc_vers_major -ge 7; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 7)"
+ DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments developer-7)"
+ fi
-esac
+ # gcc 8
+ if test $cc_vers_major -ge 8; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 8)"
+ H5_ECFLAGS="$H5_ECFLAGS $(load_gnu_arguments error-8)"
+ DEVELOPER_WARNING_CFLAGS="$DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments developer-8)"
+ NO_DEVELOPER_WARNING_CFLAGS="$NO_DEVELOPER_WARNING_CFLAGS $(load_gnu_arguments no-developer-8)"
+ fi
+
+ # gcc 9
+ if test $cc_vers_major -ge 9; then
+ H5_CFLAGS="$H5_CFLAGS $(load_gnu_arguments 9)"
+ fi
+
+ #################
+ # Flags are set #
+ #################
+ cc_flags_set=yes
+fi
# Clear cc info if no flags set
if test "X$cc_flags_set" = "X"; then
- cc_vendor=
- cc_version=
+ cc_vendor=
+ cc_version=
fi
+