K 10 svn:author V 2 ed K 8 svn:date V 27 2013-05-13T21:46:07.839683Z K 7 svn:log V 335 Rework the way C11 keywords are defined. Instead of only checking the __STDC_VERSION__, we can also use Clang's __has_extension() to check for features specifically. This allows us to, say, use Clang's native _Static_assert() instead of the typedef hack, making the compiler error messages a lot more readable. Reviewed by: theraven END