patch applied (ghc): Rename some variables from FOO to FOO_CMD

[Ian Lynagh]

Wed Jun 16 09:11:08 PDT 2010  Ian Lynagh <igloo at earth.li>
  * Rename some variables from FOO to FOO_CMD
  This fixes a problem with commands like gzip, where if $GZIP is exported
  in the environment, then when make runs a command it'll put the Makefile
  variable's value in the environment. But gzip treats $GZIP as arguments
  for itself, so when we run gzip it thinks we're giving it "gzip" as an
  argument.

    M ./docs/storage-mgt/rp.tex -2 +2
    M ./ghc.mk -4 +4
    M ./libffi/ghc.mk -1 +1
    M ./mk/build.mk.sample -1 +1
    M ./mk/config.mk.in -8 +8
    M ./mk/validate-settings.mk -1 +1

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20100616161108-3fd76-c4e9a93678fcca37832e82b5c51f440fc04069ee.gz