My experience is that is you add MSVC, ICC, GCC 3.3, clang, hardened GCC on Linux, Windows, Mac, BSD, Android, iOS, Windows Phone, OS/2, Solaris and allow PPC o

My experience is that is you add MSVC, ICC, GCC 3.3, clang, hardened GCC on Linux, Windows, Mac, BSD, Android, iOS, Windows Phone, OS/2, Solaris and allow PPC or MIPS and have many cases of Cross-compilation, this just does not work. Especially when you have ASM code or complex arithmetic, and when you allow to compile for different versions of Windows... It's a good idea to have it on your build-farm, to track bugs, but it is not OK on your shipping build.