[GHC] #7274: hp2ps sometimes creates invalid postscript files

[GHC]

#7274: hp2ps sometimes creates invalid postscript files
------------------------------+---------------------------------------------
 Reporter:  edsko             |          Owner:                  
     Type:  bug               |         Status:  new             
 Priority:  normal            |      Component:  Compiler        
  Version:  7.6.1             |       Keywords:                  
       Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
  Failure:  None/Unknown      |       Testcase:                  
Blockedby:                    |       Blocking:                  
  Related:                    |  
------------------------------+---------------------------------------------
 The attached .hp file is one example; running the resulting ps file
 through ps2pdf gives


 Error: /syntaxerror in -file-
 Operand stack:

 Execution stack:
    %interp_exit   .runexec2   --nostringval--   --nostringval--
 --nostringval--   2   %stopped_push   --nostringval--   --nostringval--
 --nostringval--   false   1   %stopped_push   1894   1   3   %oparray_pop
 1893   1   3   %oparray_pop   1877   1   3   %oparray_pop   1771   1   3
 %oparray_pop   --nostringval--   %errorexec_pop   .runexec2
 --nostringval--   --nostringval--   --nostringval--   2   %stopped_push
 Dictionary stack:
    --dict:1157/1684(ro)(G)--   --dict:0/20(G)--   --dict:79/200(L)--
 Current allocation mode is local
 Last OS error: 2
 Current file position is 12516
 GPL Ghostscript 9.05: Unrecoverable error, exit code 1

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7274>
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