http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55925
--- Comment #1 from Uros Bizjak <ubizjak at gmail dot com> 2013-01-13 13:39:25 UTC --- (In reply to comment #0) > When building a native x86_64-w64-mingw32 compiler using a 4.7.2 cross > compiler, I get the following: > > x86_64-w64-mingw32-gcc -L/root/win64-build/native/x86_64-w64-mingw32/lib [...] > I can't find any documentation at all on this '-mfxsr' option. What is it, and > why is it being used here? crtfastmath.c should be compiled with newly built compiler. "-mfxsr" option is used to compile __builtin_ia32_fxsave builtin to fxsr instruction, newly built compiler will recognize this option. How did you configure gcc?
