https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68626
--- Comment #2 from john.frankish at outlook dot com --- I believe /usr/local/lib/bfd-plugins/liblto_plugin.so (symlink to /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.9.1/liblto_plugin.so) is the correct location?