[GHC] #5743: Configurably use system-provided libffi

[GHC]

#5743: Configurably use system-provided libffi
---------------------------------+------------------------------------------
    Reporter:  nomeata           |       Owner:  trommler    
        Type:  feature request   |      Status:  patch       
    Priority:  normal            |   Milestone:  7.6.2       
   Component:  Build System      |     Version:  7.2.1       
    Keywords:                    |          Os:  Linux       
Architecture:  Unknown/Multiple  |     Failure:  None/Unknown
  Difficulty:  Unknown           |    Testcase:              
   Blockedby:                    |    Blocking:              
     Related:  #4496             |  
---------------------------------+------------------------------------------

Comment(by trommler):

 Replying to [comment:3 slyfox]:
 > Moreover, ghc does not embed RPATH to libffi for packages using it:
 In fact ghc does not set any RPATH (or RUNPATH if you are using ELF's new
 dynamic tags) in the libraries that come with it. I relies Cabal setting
 the correct RPATH/RUNPATH in the binaries using a library.

 As this is a more general issue with the way shared libraries are built
 (see for example trac #7062) and installed in ghc, I did not yet add a
 patch that just fixes the symptom.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5743#comment:10>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler