https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67020
nsz at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |RESOLVED Resolution|--- |INVALID --- Comment #2 from nsz at gcc dot gnu.org --- the musl patches are in gcc-trunk and were not yet backported to gcc-5 (or any 4.x branches), bug 58446 tracks their current state. it seems clfs has its own musl patch at http://patches.clfs.org/embedded-dev/gcc-4.7.3-musl-1.patch so this is not a gcc bug (ask on clfs or musl mailing lists for help). looking at the clfs patch i think it is ok, but it probably did not apply correctly to the gcc source you were using (e.g. it won't work for gcc-5.2, make sure you use the same gcc version as the patch).