https://bugzilla.redhat.com/show_bug.cgi?id=1161014
--- Comment #1 from Jens Petersen petersen@redhat.com --- Currently ghc on ARMv7 using llvm as its compiler backend (note not clang). Current ghc releases only support llvm 3.4 and earlier. F22 Rawhide just moved to llvm-3.5 which breaks ghc's RTS on ARM. So this package is needed to keep ghc working on ARM.
Koji scratch build: http://koji.fedoraproject.org/koji/taskinfo?taskID=8052781
llvm34-libs is parallel installable with llvm-libs. The rest of the packages file conflict with the llvm packages but I think this is okay (at least after adding Conflicts). There are also a few bcond related build fixes that could be merged into llvm.spec.
The package also build locally for me on F20, so if llvm-3.5 is backported to F21 (though it is late now for major version updates), I think this should build on F21 too.