patch applied (ghc): Fix C/Haskell type mismatches

[Ian Lynagh]

Tue Apr  3 12:53:24 PDT 2007  Ian Lynagh <igloo at earth.li>
  * Fix C/Haskell type mismatches

    M ./compiler/basicTypes/UniqSupply.lhs -3 +3
    M ./includes/RtsExternal.h -6 +6
    M ./rts/RtsUtils.c -3 +3
    M ./rts/Threads.c -3 +3
    M ./rts/posix/Signals.c -1 +1
    M ./rts/win32/ThrIOManager.c -5 +5