ld on mac won't allow -rpath unless you specify macosx_version_min 10.5

[mwotton]

when trying to build a Haskell shared library on Mac OS X, linking fails with this error:

ld: -rpath can only be used when targeting Mac OS X 10.5 or later

this can be tracked down to the DriverPipeline?.hs specifying macosx_version_min to be 10.3. This can be hacked around by passing 10.5 again, but is a bit fragile because ld on Mac takes the last version specified rather than the highest. There may be good reasons to retain <10.5 compatibility, but from IRC conversation with JaffaCake?, ghc depends on 10.5 anyway, so this _should_ make no difference.

[mwotton]

patch to increase macosx_version_min to 10.5

[igloo]

Thanks for the patch; I'll take a look.

[igloo]

Applied, thanks!