On Sat, Jul 30, 2011 at 9:23 PM, Edward Z. Yang <ezy...@mit.edu> wrote: > No, I don't think this diagnosis is correct. hsc2hs is outputting > preprocessor > directives into hs files that GHC will then process. Inspect your .hs file,
Not for me it's not, it's putting preprocessor directives into a C file that the C compiler will then process. Unless I'm getting quoting levels mixed up, outInclude from C.hs is printing C code, with a printf inside. And when I run with --no-compile I see the ifdefs in the C. They won't work in haskell anyway unless you pass {-# LANGUAGE CPP #-} and if hsc2hs is capable of emitting that pragma I can't find where it does it. > Actually, we should check if this problem is actually still around. > Remember you need to use ghc-7.0.3's hsc2hs, not an arbitrary one lying > around (though it may work). I was, now I'm actually using the one from HEAD, so I can mess with it. In any case, both report their version as 0.67. On Sat, Jul 30, 2011 at 9:25 PM, Ian Lynagh <ig...@earth.li> wrote: > But I also think we may as well just remove most of these conditionals. > The GHC < 4.09 tests can surely be removed, and likewise the GHC < 6.3 > tests. Personally I'd remove the GHC < 6.10 test too, but perhaps that > will be more contentious. > > Any opinions? That was going to be my first suggestion. Maybe the only reason these are needed is that the hsc2hs binary itself isn't versioned, otherwise you simply run the one that came with your ghc, and if it's for ghc-4 then it should be producing code ghc-4 understands. So the problem would be with code that knows to specifically invoke an older ghc, but still picks up the hsc2hs symlink which points to a newer one. I don't know of any framework for compiling with multiple versions, but I'd think it should be smart enough to find the appropriate ghc lib directory and run the various utilities out of there. _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users