[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 ian@…):

 commit 3005e90936c47c1f71672bf6c84fff20cb14014b
 {{{
 Author: Ian Lynagh <ian at well-typed.com>
 Date:   Thu Nov 29 22:22:39 2012 +0000

     Add configure option to use system provided libffi; fixes #5743

     Based on patch from Peter Trommler:

         From 293495d40f62e691520331a41c6d85d82e120169 Mon Sep 17 00:00:00
 2001
         From: Peter Trommler <ptrommler at acm.org>
         Date: Sun, 21 Oct 2012 18:47:01 +0200
         Subject: [PATCH] Add configure option to use system provided
 libffi This
          fixes track # 5743 and #4496.

  configure.ac        |   55
 +++++++++++++++++++++++++++++++++++++++++++++++++++
  ghc.mk              |   11 ++++++++-
  mk/config.mk.in     |    7 ++++++
  rts/ghc.mk          |   42 ++++++++++++++++++++++++++++++++++----
  rts/package.conf.in |    3 ++
  5 files changed, 111 insertions(+), 7 deletions(-)
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5743#comment:13>
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