https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66029
--- Comment #10 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Is the output of the following commands non-empty?
% ar --help | grep plugin
% echo "int main () {}" | gcc -x c++ -O2 - -flto -v 2>&1 | grep "collect2
-plugin"
