added compiler fallback



git-svn-id: https://ilk.uvt.nl/svn/trunk/sources/TimblServer@17734 12f355fe-0486-481a-ad91-c297ab22b4e3
fix for clang++ (testing on g++ next)



git-svn-id: https://ilk.uvt.nl/svn/trunk/sources/TimblServer@17739 12f355fe-0486-481a-ad91-c297ab22b4e3