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# This is a ugly issue, see bug 289757 for origins
# This mimics the check in gcc ebuilds, bug 362315
#
# # Remember, bash treats floats like strings..
get_libc_vers_min() {
if [[ -x /usr/bin/ldd ]] ; then
/usr/bin/ldd --version \
| head -n1 \
| grep -o ") 2\.[0-9]\+" \
| cut -d. -f2
return
elif [[ -x /lib/libc.so.6 || -x /lib64/libc.so.6 ]] ; then
{
/lib/libc.so.6 || /lib64/libc.so.6
} 2>/dev/null \
| head -n1 \
| grep -o 'version 2\.[0-9]\+' \
| cut -d. -f2
return
fi
echo "0"
}
if [[ ${CATEGORY}/${PN} == sys-devel/gcc && ${EBUILD_PHASE} == unpack ]]; then
# Since 2.3 > 2.12 in numerical terms, just compare 2.X to 2.Y, will break
# if >=3.0 is ever released
VERS=$(get_libc_vers_min)
if [[ $VERS -lt 12 ]]; then # compare host glibc 2.x to 2.12
ewarn "Your host glibc is too old; disabling automatic fortify. bug 289757"
EPATCH_EXCLUDE+=" 10_all_gcc-default-fortify-source.patch" # <=gcc-4.5*
EPATCH_EXCLUDE+=" 10_all_default-fortify-source.patch" # >=gcc-4.6*
fi
fi
if [[ ${EBUILD_PHASE} == setup ]]; then
VERS=$(get_libc_vers_min)
if [[ $VERS -lt 6 && "${CFLAGS} " != *'gnu89-inline '* ]]; then # compare host glibc 2.x to 2.6
einfo "Your host glibc is too old; enabling -fgnu89-inline compiler flag. bug 473524"
CFLAGS="${CFLAGS} -fgnu89-inline" # for C only
fi
fi
# vim: set syn=sh:
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