Adding System.FilePath

[Ketil Malde]

Duncan Coutts wrote:

> But in general: so you could say that these bugs show we should have
> waited longer for the library to mature, on the other hand I rather
> suspect that we'd never have found these without the huge number of
> people using the lib that came from it being included as standard.

I certainly don't argue against bundling FPS (or any other package) with 
GHC (or any other compiler), and I don't think Bulat (or anybody else) 
is either.  The problem is *packages*: we have a nice and flexible 
infrastructure for manipulating these, but with the exception of 'base'.

When a library is in base, I can no longer depend on a particular 
version, upgrade to current development version, experiement with 
modifications, etc.  With any other package, I can do so, and together 
with darcs and cabal, lots of code is very accessible, with a relatively 
smooth incline for getting gradually more involved.  The 'base' package 
has a much wider gap between consumers and developers.

To avoid confusion, could we use a separate term to describe required 
bundled libraries, "core libraries" perhaps?

-k