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Diffstat (limited to 'config/gnu-cxxflags')
| -rw-r--r-- | config/gnu-cxxflags | 312 |
1 files changed, 312 insertions, 0 deletions
diff --git a/config/gnu-cxxflags b/config/gnu-cxxflags new file mode 100644 index 0000000..e177aef --- /dev/null +++ b/config/gnu-cxxflags @@ -0,0 +1,312 @@ +# -*- shell-script -*- +# +# Copyright by The HDF Group. +# Copyright by the Board of Trustees of the University of Illinois. +# All rights reserved. +# +# This file is part of HDF5. The full HDF5 copyright notice, including +# terms governing use, modification, and redistribution, is contained in +# the COPYING file, which can be found at the root of the source code +# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. +# If you do not have access to either file, you may request a copy from +# help@hdfgroup.org. + + +# This file should be sourced into configure if the compiler is the +# GNU g++ compiler or a derivative. It is careful not to do anything +# if the compiler is not GNU; otherwise `cxx_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} | demote_errors + done) + IFS=' ' echo "$*" +} + +# Get the compiler version in a way that works for g++ +# unless a compiler version is already known +# +# cxx_vendor: The compiler name: g++ +# cxx_version: Version number: 2.91.60, 2.7.2.1 +# +if test "X-" = "X-$cxx_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" + # string, causing the gcc H5_CXXFLAGS to be erroneously added. The line + # "grep -v 'icc version'" causes the discarding of any output + # containing 'icc version'. The cxx_version for icc is correctly determined + # and flags added in the intel-flags script. + cxx_version="`$CXX $CXXFLAGS $H5_CXXFLAGS -v 2>&1 | grep -v 'PathScale' |\ + grep -v '^icc.*version' |\ + grep 'gcc version' | sed 's/.*gcc version \([-a-z0-9\.]*\).*/\1/'`" + cxx_vendor=`echo $cxx_version |sed 's/\([a-z]*\).*/\1/'` + cxx_version=`echo $cxx_version |sed 's/[-a-z]//g'` + if test X = "X$cxx_vendor" -a X != "X$cxx_version"; then + cxx_vendor=g++ + fi + if test "-" != "$cxx_vendor-$cxx_version"; then + echo "compiler '$CXX' is GNU $cxx_vendor-$cxx_version" + fi + + # Get the compiler version numbers + cxx_vers_major=`echo $cxx_version | cut -f1 -d.` + cxx_vers_minor=`echo $cxx_version | cut -f2 -d.` + cxx_vers_patch=`echo $cxx_version | cut -f3 -d.` + test -n "$cc_vers_major" || cxx_vers_major=0 + test -n "$cc_vers_minor" || cxx_vers_minor=0 + test -n "$cc_vers_patch" || cxx_vers_patch=0 + cxx_vers_all=`expr $cxx_vers_major '*' 1000000 + $cxx_vers_minor '*' 1000 + $cxx_vers_patch` +fi + +if test "X-g++" = "X-$cxx_vendor"; then + + ############################### + # Architecture-specific flags # + ############################### + + arch= + case "$host_os-$host_cpu" in + # FreeBSD sets the information from "uname -m" to the general machine + # architecture, not the specific CPU for the machine, so even our + # Pentium II Xeon server is set to "i386". Once we know we are on a FreeBSD + # machine, use the "sysctl" command to get the CPU hardware model. + freebsd*-i386) + host_cpu_model=`sysctl -n hw.model` + case "$host_cpu_model" in + # Hmm.. this might not catch Celerons, but it won't hurt them either... + *Pro*|*II*|*III*|*IV*|*Athlon*) + # architecture-specific optimizations cause problems + # for some users who build binaries to be used on + # multiple architectures. + # arch="-march=i686" + ;; + esac + ;; + + *-i686) + # architecture-specific optimizations cause problems + # for some users who build binaries to be used on + # multiple architectures. + # arch="-march=i686" + ;; + esac + + # C++-specific + H5_CXXFLAGS="$H5_CXXFLAGS $arch" + + ############## + # Production # + ############## + + # NDEBUG is handled explicitly by the configure script + if test $cxx_vers_major -le 4; then + PROD_CXXFLAGS= + else + PROD_CXXFLAGS="-fstdarg-opt" + fi + + ######### + # Debug # + ######### + + # NDEBUG is handled explicitly by the configure script + # -g is handled by the symbols flags + if test $cxx_vers_major -le 4; then + DEBUG_CXXFLAGS= + else + DEBUG_CXXFLAGS="-ftrapv -fno-common" + fi + + ########### + # Symbols # + ########### + + NO_SYMBOLS_CXXFLAGS="-s" + SYMBOLS_CXXFLAGS="-g" + + ############# + # Profiling # + ############# + + PROFILE_CXXFLAGS="-pg" + + ################ + # Optimization # + ################ + + if test $cxx_vers_major -le 4; then + HIGH_OPT_CXXFLAGS="-O3" + DEBUG_OPT_CXXFLAGS= + else + HIGH_OPT_CXXFLAGS="-O3" + DEBUG_OPT_CXXFLAGS="-Og" + fi + NO_OPT_CXXFLAGS="-O0" + + ############ + # Warnings # + ############ + +# First load the C warnings then add CXX warnings (if needed) + + ########### + # General # + ########### + + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments general)" + H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments error-general)" + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments cxx-general)" + #H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments error-cxx-general)" + + ###################### + # Developer warnings # + ###################### + + NO_DEVELOPER_WARNING_CXXFLAGS=$(load_gnu_arguments no-developer-general) + DEVELOPER_WARNING_CXXFLAGS=$(load_gnu_arguments developer-general) + + ####################### + # gcc 4 special cases # + ####################### + + # GCC 4.2 through 4.6 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $cc_vers_minor -le 6; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.2-4.6)" + fi + + # GCC 4.2 through 4.3 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -o $cc_vers_major -eq 4 -a $cc_vers_minor -le 3; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.2-4.3)" + fi + + # GCC 4.5 through 4.6 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -le 6; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.5-4.6)" + fi + + # GCC 4.2 through 4.4 + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2 -a $cc_vers_major -eq 4 -a $cc_vers_minor -le 4; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.2-4.4)" + fi + + # GCC 4.2 through the end of GCC 4 series + if test $cc_vers_major -eq 4 -a $cc_vers_minor -ge 2; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.2-4.last)" + fi + + ############################# + # Version-specific warnings # + ############################# + + # gcc >= 4.3 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 3; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.3)" + fi + + # gcc >= 4.4 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 4; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.4)" + fi + + # gcc >= 4.5 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 5; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.5)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-4.5)" + NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments no-developer-4.5)" + fi + + # gcc >= 4.6 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 6; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.6)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-4.6)" + NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments no-developer-4.6)" + fi + + # gcc >= 4.7 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 7; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.7)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-4.7)" + NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments no-developer-4.7)" + fi + + # gcc >= 4.8 + if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.8)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-4.8)" + NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(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 $cc_vers_minor -ge 9; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 4.9)" + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments cxx-4.9)" + fi + + # gcc >= 5 + if test $cc_vers_major -ge 5; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 5)" + H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments error-5)" + fi + + # gcc >= 6 + if test $cc_vers_major -ge 6; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 6)" + fi + + # gcc >= 7 + if test $cc_vers_major -ge 7; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 7)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-7)" + fi + + # gcc 8 + if test $cc_vers_major -ge 8; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 8)" + H5_ECXXFLAGS="$H5_ECXXFLAGS $(load_gnu_arguments error-8)" + DEVELOPER_WARNING_CXXFLAGS="$DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments developer-8)" + NO_DEVELOPER_WARNING_CXXFLAGS="$NO_DEVELOPER_WARNING_CXXFLAGS $(load_gnu_arguments no-developer-8)" + fi + + # gcc 9 + if test $cc_vers_major -ge 9; then + H5_CXXFLAGS="$H5_CXXFLAGS $(load_gnu_arguments 9)" + fi + + ################# + # Flags are set # + ################# + cxx_flags_set=yes +fi + +# Clear cxx info if no flags set +if test "X$cxx_flags_set" = "X"; then + cxx_vendor= + cxx_version= +fi |