https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91838
--- Comment #7 from Tamar Christina <tnfchris at gcc dot gnu.org> --- (In reply to Martin Liška from comment #2) > So the issue started with r8-349-gcc5b8f3d568e95ce74e03d8d87ada71117a6c106 > and disappeared in r10-2445-g5fbc8ab48a57a75e0ce064befc30dee3dc63327a. Hi Martin, How do I build gcc around those commits? I have tried building x86_64 around 5b8f3d568e95ce74e03d8d87ada71117a6c106 and it keeps failing for the commits around there with a libgcc compile error. In file included from /data/tamchr01/write-access/gcc-git/libgcc/unwind-dw2.c:403:0: ./md-unwind-support.h: In function 'x86_64_fallback_frame_state': ./md-unwind-support.h:65:47: error: dereferencing pointer to incomplete type 'struct ucontext' sc = (struct sigcontext *) (void *) &uc_->uc_mcontext; and disabling libgcc doesn't get me very far because of the dependencies of things on it.