patch applied (cabal-install): Use the new withTempDirectory function

[Duncan Coutts]

Sun Feb  1 17:22:55 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Use the new withTempDirectory function
  In particular it means that install will unpack packages into
  different temp dirs on each invocation which means that running
  install on the same package for different compilers at the same
  time should not clash. This is quite useful for testing.

    M ./Distribution/Client/Install.hs -15 +15
    M ./Distribution/Client/SrcDist.hs -10 +7

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20090202012255-adfee-fa3f3abf4d7cee9ce9adf11cae5b56ca391f59ee.gz