http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59654
--- Comment #22 from tlcclt <Thomas.L.Clune at nasa dot gov> --- Success! I had to manually edit the configure file for the latest gcc to build on my Mac. (a few -Werror=…) were blocking the compilation. Looks like that should be off by default, but somehow is not. Anyway, I was able to build the gcc. And … it _fixed_ the problem in the real code! Thanks so much for all the assistance.