[commit: base] ghc-7.4's head updated: Make a wrapper for getrusage; part of #5480 (ca4ee55)

[Ian Lynagh]

Repository : ssh://darcs.haskell.org//srv/darcs/packages/base

Branch 'ghc-7.4' now includes:

     a43d404... Fix compilation error on windows.
     088c966... Rules for powers with small exponents (fixes #5237)
     fda9e80... Eta contract 'PArr' synonym
     dfca290... Add a C wrapper for gettimeofday
     8998e40... Remove some unused functions from include/HsBase.h
     5e2a959... Simplify some CPP
     ca4ee55... Make a wrapper for getrusage; part of #5480