[cvs-nhc98] Cygwin fixes for hmake-config.

[Malcolm Wallace]

malcolm: Fri Apr  5 18:59:38 CEST 2002

Update of /usr/src/master/nhc/src/hmake
In directory hinken:/tmp/cvs-serv14013

Modified Files:
	Makefile MkConfig.hs 
Log Message:
Cygwin fixes for hmake-config.
  * Eliminate the use of ghc -package posix by using the FFI direct.
  * Force lazy readFile to read its input fully, so we can remove the file
    safely under Windows.
  * Change the import-detection method for ghc.  There is no shell script
    driver in Windows, so use ghc -v on all systems instead.