what is darwin_register_objc_includes in gcc/config/darwin-c.c for? is it needed for linux?
/* Register the GNU objective-C runtime include path if STDINC. */
/* Register the GNU OBJC runtime include path if we are compiling OBJC
with GNU-runtime. */
? Do you have a next-runtime for linux? I suspect not, if not, then it would seem you don't need this.
