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|
# -*- shell-script -*-
#
# This file is part of the HDF4 build script. It is processed shortly
# after configure starts and defines, among other things, flags for
# the various compilation modes.
#
# 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
# PathScale compiler spits out gcc version string too. Need to
# filter it out.
# icc beginning with version 12 includes a "gcc version compatibility"
# string, causing the gcc CFLAGS to be erroneously added. The line
# "grep -v 'icc version'" causes the discarding of any output
# containing 'icc version'. The cc_version for icc is correctly determined
# and flags added in the intel-flags script.
cc_version="`$CC $CFLAGS -v 2>&1 | grep -v 'PathScale' |\
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$cc_version"; then
cc_vendor=gcc
fi
if test "-" != "$cc_vendor-$cc_version"; then
echo "compiler '$CC' is GNU $cc_vendor-$cc_version"
fi
# 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
fi
if test "X-gcc" = "X-$cc_vendor"; then
CFLAGS="$CFLAGS -std=c99"
if test $cc_vers_major -ge 10; then
CFLAGS="$CFLAGS -Wno-error=implicit-function-declaration"
else
CFLAGS="$CFLAGS"
fi
DEBUG_CFLAGS="-g -fverbose-asm"
DEBUG_CPPFLAGS=
PROD_CFLAGS="-O3 -fomit-frame-pointer"
PROD_CPPFLAGS=
PROFILE_CFLAGS="-pg"
PROFILE_CPPFLAGS=
####################
# General warnings #
####################
# 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 $cc_vers_major -gt 4; then
CFLAGS="$CFLAGS $(load_gnu_arguments general)"
CFLAGS="$CFLAGS $(load_gnu_arguments no-developer-general)"
fi
#############################
# Version-specific warnings #
#############################
# gcc >= 4.8
if test $cc_vers_major -ge 5 -o $cc_vers_major -eq 4 -a $cc_vers_minor -ge 8; then
CFLAGS="$CFLAGS $(load_gnu_arguments 4.8)"
CFLAGS="$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 $cc_vers_minor -ge 9; then
CFLAGS="$CFLAGS $(load_gnu_arguments 4.9)"
fi
# gcc >= 5
if test $cc_vers_major -ge 5; then
CFLAGS="$CFLAGS $(load_gnu_arguments 5)"
fi
# gcc >= 6
if test $cc_vers_major -ge 6; then
CFLAGS="$CFLAGS $(load_gnu_arguments 6)"
fi
# gcc >= 7
if test $cc_vers_major -ge 7; then
CFLAGS="$CFLAGS $(load_gnu_arguments 7)"
fi
# gcc 8
if test $cc_vers_major -ge 8; then
CFLAGS="$CFLAGS $(load_gnu_arguments 8)"
CFLAGS="$CFLAGS $(load_gnu_arguments no-developer-8)"
fi
# gcc 9
if test $cc_vers_major -ge 9; then
CFLAGS="$CFLAGS $(load_gnu_arguments 9)"
fi
# gcc >= 9.3
if test $cc_vers_major -ge 10 -o $cc_vers_major -eq 9 -a $cc_vers_minor -ge 3; then
CFLAGS="$CFLAGS $(load_gnu_arguments 9.3)"
fi
#################
# Flags are set #
#################
cc_flags_set=yes
fi
# Clear cc info if no flags set
if test "X$cc_flags_set" = "X"; then
cc_vendor=
cc_version=
fi
|
