[GHC] #706: GHC uses _stub.c files regardless of whether any 'foreign import' decls remain in a .hs file

[GHC]

#706: GHC uses _stub.c files regardless of whether any 'foreign import' decls
remain in a .hs file
------------------------------+---------------------------------------------
 Reporter:  ncalexan at uci.edu  |          Owner:  igloo           
     Type:  bug               |         Status:  new             
 Priority:  normal            |      Milestone:  6.8             
Component:  Compiler (FFI)    |        Version:  6.4.1           
 Severity:  minor             |     Resolution:                  
 Keywords:  ffi, link         |     Difficulty:  Moderate (1 day)
 Testcase:                    |   Architecture:  Multiple        
       Os:  Multiple          |  
------------------------------+---------------------------------------------
Comment (by jcab at JCABs-Rumblings.com):

 In order to repro, just install GHC in a Windows machine, unzip the
 attached file in some directory, and from that directory run the command:

 ghc -fglasgow-exts -fallow-undecidable-instances -fallow-overlapping-
 instances -fno-monomorphism-restriction -threaded -lKernel32 -lUser32
 -lGdi32 -lOle32 -lComctl32 -optc-D_WIN32_IE=0x700 -optc-
 D_WIN32_WINNT=0x600 Win32Test.hs -fforce-recomp

 There's a stub.c (renamed as stubBugBug.c) in the Win32 directory. There's
 another stub.c file in the root directory (Win32Test_stub.c). Both (the
 one in Win32 directory needs to be renamed back to stub.c, of course) will
 cause compile errors if present. Deleting them (or renaming them) will
 work around the issue. Both came from GHC 6.4.2.

 Let me know if you have any trouble reproing this.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/706>
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