https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81033
--- Comment #17 from simon at pushface dot org ---
I applied your patches (comment 12, comment 13) to the gcc-8-20170702 snapshot.
Building on darwin 16.6.0 with gcc-7.1.0 as the stage1 compiler was successful
(languages=c,c++,ada).
make check-c:
=== gcc Summary ===
# of expected passes 41267
# of unexpected failures 28
# of expected failures 120
# of unresolved testcases 4
# of unsupported tests 1049
