Created attachment 599696 [details] binutils-apple-8.2.1-r1 build log This error: /usr/include/i386/_mcontext.h:108:2: error: unknown type name '_STRUCT_X86_THREAD_FULL_STATE64' is shown a few times in stage2 of the bootstrap script while emerging sys-devel/binutils-apple-8.2.1-r1. It's possible to bypass by copying the definition of the struct to _mcontext.h but the definition is imported so this shouldn't need to happen. Macos 10.14.4/10.14.6
Will have a look at bootstrapping, I think xnu-headers and darwin-libc-headers should help prevent this problem.
this is fixed in -r101