diff options
Diffstat (limited to 'eclass')
| -rw-r--r-- | eclass/flag-o-matic.eclass | 9 | ||||
| -rwxr-xr-x | eclass/tests/flag-o-matic.sh | 5 |
2 files changed, 13 insertions, 1 deletions
diff --git a/eclass/flag-o-matic.eclass b/eclass/flag-o-matic.eclass index 0393a30b74c3..79866e04a483 100644 --- a/eclass/flag-o-matic.eclass +++ b/eclass/flag-o-matic.eclass @@ -441,7 +441,14 @@ test-flag-PROG() { cmdline+=( "${flag}" -c -o /dev/null /dev/null ) fi - "${cmdline[@]}" </dev/null &>/dev/null + if ! "${cmdline[@]}" </dev/null &>/dev/null; then + # -Werror makes clang bail out on unused arguments as well; + # try to add -Qunused-arguments to work-around that + # other compilers don't support it but then, it's failure like + # any other + cmdline+=( -Qunused-arguments ) + "${cmdline[@]}" </dev/null &>/dev/null + fi } # @FUNCTION: test-flag-CC diff --git a/eclass/tests/flag-o-matic.sh b/eclass/tests/flag-o-matic.sh index 92c68b82c3c9..5e7ee354bf33 100755 --- a/eclass/tests/flag-o-matic.sh +++ b/eclass/tests/flag-o-matic.sh @@ -143,6 +143,11 @@ tbegin "test-flags-CC (gcc-valid but clang-invalid flags)" out=$(CC=clang test-flags-CC -finline-limit=1200) [[ $? -ne 0 && -z ${out} ]] ftend + +tbegin "test-flags-CC (unused flags w/clang)" +out=$(CC=clang test-flags-CC -Wl,-O1) +[[ $? -eq 0 && ${out} == "-Wl,-O1" ]] +ftend fi texit |