[darcs-devel] darcs patch: make better use of unsafePerformIO in getPolicy in Col...

[ptp at lysator.liu.se]

Mon Apr  4 22:56:23 CEST 2005  Tommy Pettersson <ptp at lysator.liu.se>
  * make better use of unsafePerformIO in getPolicy in ColourPrinter
  Wrap every environment variable lookup in unsafePerformIO, so we
  only make system calls for those values that are used.
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