posix, POpen, ghc 6.5

[Frederik Eaton]

I'm not sure what's happened, I'm getting strange errors, it seems
like a lot of packages have changed names in ghc 6.5. For instance,
'posix' is missing from the output of 'ghc-pkg list --global' and I
don't know where to find POpen. 

/home/frederik/arch/i386//lib/ghc-6.5.20060106/package.conf:
    Cabal-1.0, GLUT-2.0, HGL-3.1, HUnit-1.1, OpenGL-2.1,
    QuickCheck-1.0, X11-1.1, base-1.0, fgl-5.2, (ghc-6.5.20060106),
    haskell-src-1.0, haskell98-1.0, hsql-1.7, hsql-mysql-1.7, mtl-1.0,
    network-1.0, parsec-2.0, readline-1.0, rts-1.0, stm-1.0,
    template-haskell-1.0, unix-1.0

'popen' doesn't seem to appear in the documentation. Has it been
removed? If so, that seems slightly unfair. I remember trying to write
something using runProcess or runInteractiveProcess recently and
finding those buggy. It would be nice to have some measure of
stability.

Frederik