Adding System.FilePath

[ArtemGr]

Bulat Ziganshin <bulat.ziganshin <at> gmail.com> writes:
> this creates problems for developers and users. for example, program
> developed 3 years ago, may be easily incompatible with current ghc
> version
> 
> instead, i propose to keep evolving things outside of base, which will
> allow to use any version of any library with any ghc version. if you
> build something written in times of ghc 6.2 - you use old version of
> library. if you build something more modern - you use newer version.
> cabal automatically handles keeping of multiple versions of same
> library and using proper version for each build. this technology
> provides us *both* evolving of libraries and compatibility with old
> versions

I think it really is offtopic now, but... IMO, Cabal and hackage should treat
the base as just another library and should be able to install a fresh base when
required. As far as i know, this is achievable to some degree by hands. Making
the base "append-only" is not a good solution, IMO.