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

[GHC]

#5743: Configurably use system-provided libffi
------------------------------+---------------------------------------------
  Reporter:  nomeata          |          Owner:  trommler        
      Type:  feature request  |         Status:  closed          
  Priority:  normal           |      Milestone:  7.6.2           
 Component:  Build System     |        Version:  7.7             
Resolution:  fixed            |       Keywords:                  
        Os:  Linux            |   Architecture:  Unknown/Multiple
   Failure:  None/Unknown     |     Difficulty:  Unknown         
  Testcase:                   |      Blockedby:                  
  Blocking:                   |        Related:  #4496           
------------------------------+---------------------------------------------
Changes (by igloo):

  * status:  patch => closed
  * resolution:  => fixed


Comment:

 I've applied the patch, thanks. I think we only use `rts_LD_OPTS` when
 calling ld directly.

 If you have any problems building, it's probably best to open a new ticket
 giving details, as this one is starting to get a little large and most of
 the history probably won't be relevant.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5743#comment:21>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler