[GHC] #5977: Allow ignoring global package db

[GHC]

#5977: Allow ignoring global package db
---------------------------------+------------------------------------------
    Reporter:  duncan            |       Owner:  pcapriotti      
        Type:  feature request   |      Status:  patch           
    Priority:  high              |   Milestone:  7.6.1           
   Component:  Compiler          |     Version:  7.4.1           
    Keywords:                    |          Os:  Unknown/Multiple
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown    
  Difficulty:  Unknown           |    Testcase:                  
   Blockedby:                    |    Blocking:                  
     Related:                    |  
---------------------------------+------------------------------------------

Comment(by simonmar):

 Yes, that looks ok.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5977#comment:11>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler