https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100017
--- Comment #28 from cqwrteur <unlvsur at live dot com> --- (In reply to Ofer Shinaar from comment #27) > (In reply to cqwrteur from comment #23) > > (In reply to Jonathan Wakely from comment #22) > > > *** Bug 101060 has been marked as a duplicate of this bug. *** > > > > I can confirm Yujie Yang's patch works. Just add -nostdinc++ to configure > > and configure.ac in gcc root repository (not in gcc subdirectory nor > > libstdc++-v3 subdirectory) > > > > Yes. So it is very easy to fix. > > and what if I do want to use libstdc++ ? the first soultion allows me that no. it does not affect how libstdc++ builds. It is a bug in the build process that the GCC will prefer finding headers in the C++ cross compiler. It should not use C++ standard library headers in your cross compiler. Add -nostdinc++ is adding a toggle at the build process that fixes all sorts of issues that relate to the build of libstdc++. It won't affect you for using it after the build. There are some other problems of Canadian compilation here, like copying wrong DLLs when you build with multilibs. Those are separate issues.
