[GHC] #7419: "hpc markup" should accept multiple .mix file search paths

[GHC]

#7419: "hpc markup" should accept multiple .mix file search paths
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Reporter:  ttuegel           |          Owner:                  
    Type:  feature request   |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.6.1             |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
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 The markup mode of the hpc executable should accept multiple .mix file
 search paths by allowing specification of multiple '--hpcdir=' flags on
 the command line. Cabal needs this feature to be able to generate coverage
 reports for test suites in certain configurations. The hpc library already
 supports multiple search paths for a particular .mix file; all that is
 necessary is to make a change in the command line options the executable
 recognizes.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7419>
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