https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3415
nightstrike <nightstrike at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |nightstrike at gmail dot com --- Comment #7 from nightstrike <nightstrike at gmail dot com> --- Following a fresh build of gcc 6.1, make distclean results in a completely empty build directory. So, I'm guessing this has been fixed, but I didn't go back to see when it actually started working.