http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49576
--- Comment #8 from Olaf van der Spek <olafvdspek at gmail dot com> 2011-06-29 19:01:53 UTC --- /usr/include was just an example and not the main point of this feature request. I expect GCC devs to be smart enough to pick the best implementation of a certain request themselves.
