https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63810
--- Comment #7 from Lawrence Velázquez <larryv at macports dot org> --- (In reply to howarth from comment #6) > ../../gcc-5-20141114/gcc/config/darwin-c.c: In function ‘const char* > version_as_modern_macro(const long unsigned int*)’: > ../../gcc-5-20141114/gcc/config/darwin-c.c:711:7: error: comparison between > signed and unsigned integer expressions [-Werror=sign-compare] > != ((major > 9) ? sizeof "999999" : sizeof "99999") - 1) > ^ Seriously?