Clang is the default compiler on BSD and OS X. With this change, we don't have to install gcc any more. Clang can act as host cc. This is a known issue on GNU mail list. Please refer the link below. https://sourceware.org/bugzilla/show_bug.cgi?id=17473 Change-Id: I0f014b776e86e6d0cbebd560cb17f469f31e1dfb Signed-off-by: Zheng Bao <zheng.bao@amd.com> Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: http://review.coreboot.org/11638 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>