https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92296
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- >Then how can I build a new version of GCC on MinGW? :( Wait for the bug to fixed. Bugs happen. Most people compiling the trunk don't build using mingw. You are the bleading edge with compiling on the trunk. > Every day I have to rebuild the entire compiler since either some features > fail to work or the compiler fails to compile. That is what happens when you are compiling on the trunk of any sources. You are doing QA.