[haskell-llvm] llvm and pkg-config

[Henning Thielemann]

The LLVM community does not seem to be interested in supporting pkg-config 
(for now). I am thinking about constructing a .pc file for LLVM using 
llvm-config by a shell script. Using a .pc file and native pkg-config 
support in Cabal we could throw away all the configure and custom Setup 
stuff from llvm-base. It would require the user to run this script before 
installing llvm-base. How about that solution?