RFC: ghc's dynamic linker

[Simon Marlow]

> I just want to remark that anyone contemplating hacking on object
> files should steer well clear of BFD which is the most inconsistently
> implemented, poorly (though abundantly) documented obstacle to quality
> programming it has ever been my misfortune to use.  Particularily
> galling is the fact that BFD provides little indication (in
> documentation, compile-time errors, etc.) that certain functionality
> is completely unimplemented on a particular platform.
>=20
> In contrast, libelf is widely available (multiple implementations
> exist), well documented, a joy to use and covers everything (well,
> everything that GHC runs on) but Windows. =20

Thanks, I didn't know about libelf.  That might be a good replacement
for our custom linker (at least on ELF platforms) at some point.

Cheers,
	Simon