"Not allowed args fails the build" build failure(s) — clang 3.4

PackageVersionSupposed error messageFull log Bug report
devil 1.7.8-7error: invalid argument '-std=gnu99' not allowed with 'C++/ObjC++' Log
psychtoolbox-3 3.0.11.20131230.dfsg1-1error: invalid argument '-std=gnu99' not allowed with 'C++/ObjC++' Log

2 errors