c43e65c9b6
Add compilation support for clang on Linux and FreeBSD. clang is the default compiler on FreeBSD 10. Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> Tested-by: Zhaochen Zhan <zhaochen.zhan@intel.com> [Thomas: update comments] Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>