#7661: GHC build system does not detect opt-3.0 and friends --------------------------------+------------------------------------------- Reporter: singpolyma | Owner: Type: feature request | Status: new Priority: normal | Component: Compiler Version: 7.7 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Comment(by thoughtpolice): Well, those distributions typically make the GHC package (which you may use for a bootstrap compiler) depend specifically on llvm-3.0, for those co-existence reasons. And they're patched to specifically invoke those versions, just to be extra sure. So out of the box, you're not necessarily aware that you need the llvm package, or that it's even there! This is very much the case on my ARM/Linux installs (Ubuntu 12.10.) In general I just fix this by symlinking appropriately into my $HOME/bin. I think you could probably encapsulate most of the hairy machinery in an m4 macro to search for 'llc-X.Y' and 'opt-X.Y' variants, after looking for non-suffixed versions. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7661#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler