1-2 industrial folks who need to distribute applications on mac seem to have trouble building ghc 7.10.3 with integer simple on OS X 10.11 (probably because of various build tool changes that happened), so I took the time to make a build on my 10.10 mac. should be useful for others too! http://www.wellposed.com.s3.amazonaws.com/opensource/ghc/releasebuild-unoffi... https will work,but you'll get a warning that its an aws wildcard cert :) for those who prefer https and dont mind the cert warning https://www.wellposed.com.s3.amazonaws.com/opensource/ghc/releasebuild-unoff... shasum -a512 ghc-7.10.3-x86_64-apple-darwin-integer-simple-built-by-carter.tar.bz2 is 37ccb3c3fe3f21b7c56ed09b8c3d59601bde21d651d17609f62b4b41f3658e6f5a7089a0b271d44d18ba856256681a124bc34b3525c245f4917940a66a3aec63