http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56686
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c |preprocessor Host| |*mingw* --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-03-22 02:26:13 UTC --- Can you add -v and provide the output while invoking gcc like: gcc -I./ -c -o main.o d1/main.c -v This might be a mingw specific bug. It works for me on linux on the trunk.