@mark, theres no runtime detection logic patch, theres just a config time hack currently.
I've a work in progress partial patch to expose the CPP program choice + flags into the ghc settings file, https://ghc.haskell.org/trac/ghc/ticket/8683 , but lifes got me a bit overloaded these past few weeks so we need someone to "own" finishing it up (and i'm uncertain if i can hard allocate that time this week or next... i have some personal obligations that need take priority). That said, I may find up finding some time to whack on it more point being, agreed, the wrapper hack aint ok :) On Tue, Mar 4, 2014 at 9:57 AM, Mark Lentczner <mark.lentcz...@gmail.com>wrote: > It looks like the Mac builds are specific to the version of Mac OS X they > were compiled on. This is very unfortunate, as now we'll have to produce at > least four variants of HP for each. > > The only thing holding back a build on either Maverricks or Mountain Lion > (10.9 and 10.8) from working on 10.7 ~ 10.9 is the set of flags passed to > the c compiler. On a machine with only clang, these need three extra flags. > > I had thought that there was a patch that allowed GCC to dynamically > determine if it was working with clang, and if so, pass the extra flags. It > didn't look like that patch made it in. I seem to have lost track of who > did this patch and it's status. Carter: do you remember? > > For the platform, I might be able to patch around this with a variant of > my ghc-clang-wrapper script - beefing it up to remove those flags if not > clang. > > - Mark > >
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