[cvs-nhc98] patch applied (hat): Three fixes to the hat tools:

[Malcolm Wallace]

Wed Aug 14 07:01:42 PDT 2002  malcolm
  * Three fixes to the hat tools:
    * Change global `interrupted' to `hat_interrupted' to avoid a clash
      with a global in ghc's RTS, which caused ^C to terminate the program
      instead of being caught properly.
    * When passing a pattern to hat-observe on the commandline, it must be
      properly quoted, and shell special chars inside the quotes must be
      escaped.
    * Pass the name of the program down into the C routines to improve
      their error-reporting.

    M ./src/hattools/HatObserve.hs -3 +9
    M ./src/hattools/HatTrail.hs -3 +11
    M ./src/hattools/LowLevel.hs -2 +3
    M ./src/hattools/artutils.c -6 +9
    M ./src/hattools/observeutils.c -3 +6
    M ./src/hattools/observeutils.h -1 +1