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BAD_FLAGS=( "-fvisibility=hidden" "-fvisibility-hidden" "-fvisibility-inlines-hidden" "-fPIC" "-fpic" "-m32" "-m64" "-g3" "-ggdb3" "-ffast-math" )
getPROG() {
local var=$1 prog=$2
if [[ -n ${!var} ]] ; then
echo "${!var}"
return 0
fi
local search=
[[ -n $3 ]] && search=$(type -p "$3-${prog}")
[[ -z ${search} && -n ${CHOST} ]] && search=$(type -p "${CHOST}-${prog}")
[[ -n ${search} ]] && prog=${search##*/}
export ${var}=${prog}
echo "${!var}"
}
get_broken_flags() {
local myprog="${1}" lang="${2}"
shift 2
# this finds general broken flags, such as -02 or bogus -f flags
echo 'main(){}' | LC_ALL=C ${myprog} ${@} -x ${lang} -o /dev/null - 2>&1 | \
egrep "unrecognized .*option" | \
egrep -o -- '('\''|\"|`)-.*' | \
sed -r 's/('\''|`|")//g; s/^/"/; s/$/"/'
# this will find bogus debug output types, such as -gfoobar
echo 'main(){}' | LC_ALL=C ${myprog} ${@} -x ${lang} -o /dev/null - 2>&1 | \
egrep "unrecognised debug output" | \
egrep -o -- '('\''|\"|`).*' | \
sed -r 's/('\''|`|")//g; s/^/"-g/; s/$/"/'
}
remove_flag() {
local remove="${1}"
shift
while [[ "${1}" ]]; do
[[ "${1}" != "${remove}" ]] && echo -n "${1} "
shift
done
}
filter_invalid_flags() {
local flag broken_flags
eval broken_flags=( $(get_broken_flags $(getPROG CC gcc) c ${CFLAGS}) )
for flag in "${broken_flags[@]}"; do
ewarn "Filtering out invalid CFLAG \"${flag}\""
CFLAGS="$(remove_flag "${flag}" ${CFLAGS})"
done
eval broken_flags=( $(get_broken_flags $(getPROG CXX g++) c++ ${CXXFLAGS}) )
for flag in "${broken_flags[@]}"; do
ewarn "Filtering out invalid CXXFLAG \"${flag}\""
CXXFLAGS="$(remove_flag "${flag}" ${CXXFLAGS})"
done
}
bashrc_has() {
[[ " ${*:2} " == *" $1 "* ]]
}
if [[ ${EBUILD_PHASE} == "setup" ]]; then
filter_invalid_flags
unset trigger
for flag in "${BAD_FLAGS[@]}"; do
if bashrc_has ${flag} ${CFLAGS}; then
trigger=1
eerror "Your CFLAGS contains \"${flag}\" which can break packages."
fi
if bashrc_has ${flag} ${CXXFLAGS}; then
trigger=1
eerror "Your CXXFLAGS contains \"${flag}\" which can break packages."
fi
done
if [[ ${trigger} ]]; then
eerror ""
eerror "Before you file a bug, please remove these flags and "
eerror "re-compile the package in question as well as all its dependencies"
sleep 5
fi
unset flag trigger
fi
unset BAD_FLAGS
|
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