On Thu, 2007-07-19 at 10:06 +0100, Simon Peyton-Jones wrote:
| You're right, that's annoying. It's particularly a problem for Windows | GHC users who expect pre-built binaries, since GHC currently requires | all libs to be rebuilt with each new minor GHC version.
Are you sure? We try hard not to change interface-file format or calling conventions between minor releases, so you should not need to recompile with minor releases. Major ones are a different matter, I grant you.
Yes, I've always been confused by that. You go to some effort to not change the binary format of .hi files or change the ABI of the RTS etc and yet ghc explicitly checks that the .hi files are exactly the same version preventing any mixing anyway: Foo.hs: module Foo where foo = 3 Bar.hs module Bar where import Foo bar = foo + foo $ ghc-6.6 -c Foo.hs $ ghc-6.6.1 -c Bar.hs Bar.hs:3:0: Bad interface file: Foo.hi mismatched interface file versions: expected 6061, found 6060 So yes, that's why the Gtk2Hs 0.9.11 Windows installer checks for exactly ghc-6.6 and not 6.6.x in general. Duncan