On 2015-05-06 at 18:53:08 +0200, Howard B. Golden wrote:

At the risk of antagonizing some (most? all?) of you, how about...

-XCPP stands for the native CPP -XGNUCPP stands for GNU's GCC CPP -XClangCPP stands for Clang's CPP -XCPPHS stands for CPPHS

Assuming this was a serious suggestion, the benefit is that you could clearly mark what CPP you want to develop against, but OTOH, we'd lose backward compat w/ Haskell compilers only knowing about the old -XCPP but not the other new variants of the language-pragma. Moreover, there can now be packages that require clang-cpp, while others require gcc-cpp, and I don't think it can be assumed that both are available on every GHC installation. So it could cause packages to fail compiling simply because the respective CPP-flavor is missing. On the bright side, this would maybe give us the opportunity to coin the new term "CPP Hell" =) Cheers, hvr