> Generally, looks reasonable to me. Do you have any numbers of hand, > though? E.g. differences in build times? A quick set of tests building check-all LLVM+Clang (Debug, MSVC 2010 on the Windows side) gives: Windows: X86: 50 minutes all: 61 minutes = 22% longer Linux: X86: 38 minutes all: 44 minutes = 19% longer Tim.