[HOpenGL] OpenGL and GLUT packages on Windows cause undefeined reference problem if build theirs myself

[Sven Panne]

On Friday 09 March 2007 07:28, shelarcy wrote:
> [...]
> This problem doesn't occure Sigbjorn Finne's build snapshot ...
> http://www.haskell.org/ghc/dist/current/dist/
> http://www.haskell.org/pipermail/cvs-ghc/2007-March/034396.html
>
> I don't know why .. but I know why reference is unresolved.
>
> CALLCONV is defined stdcall on Windows, but hs_**_getProcAddress
> (and other cbits's c functions) are build with ccall convention.
>
> Attached are darcs patch to fix these problem.
> But ... I don't know this patch doesn't cause any ptoblem Sigbjorn's
> next binary release. Because I don't know why OpenGL and GLUT can
> build correctly under his environment.

Nice analysis of the problem. Your patch looks correct, but I don't have a 
clue why Sigbjorn's binary release works. Before I commit these patches I'd 
like to understand the current state of affairs in detail, otherwise 
the "official" release might get broken. Sigbjorn?

Cheers,
   S.