K 10 svn:author V 3 dim K 8 svn:date V 27 2017-08-07T16:23:53.393717Z K 7 svn:log V 299 Follow-up to r321684 (Don't use libc++ when cross-building for gcc arches), and handle two more cases where libc++ includes could be incorrectly enabled, in case the host compiler is clang 5.0.0, and the target (cross) compiler is gcc 4.2.1. Noted by: bdrewery MFC after: 3 days X-MFC-With: 321684 END