[MacPorts] #19736: ghc: Library not loaded: libffi.5.dylib

[MacPorts]

#19736: ghc: Library not loaded: libffi.5.dylib
-------------------------------------+--------------------------------------
 Reporter:  ryandesign@…             |       Owner:  gwright@…           
     Type:  defect                   |      Status:  new                 
 Priority:  Normal                   |   Milestone:                      
Component:  ports                    |     Version:  1.7.1               
 Keywords:                           |        Port:  ghc                 
-------------------------------------+--------------------------------------
 While trying to upgrade from 6.10.1_9 to 6.10.3_1, I got a Crash Reporter
 dialog stating:

 {{{
 Link (dyld) error:

 Library not loaded: /mp/lib/libffi.5.dylib
   Referenced from: /mp/lib/ghc-6.10.1/hsc2hs
   Reason: image not found
 }}}

 /mp is my MacPorts prefix.

 This error shows two problems:

  1. The new version of ghc is trying to use parts from the currently-
 installed version of ghc to build itself. This means the software might
 build differently for users who had a previous version installed vs. those
 who didn't. This is bad and a port should probably never use an installed
 version of itself to build a new version of itself.
  2. hsc2hs was linked with libffi but ghc did not declare a dependency on
 libffi. Either ghc needs to declare a dependency on libffi, or ghc needs
 to not link with libffi even if it is installed.

-- 
Ticket URL: <http://trac.macports.org/ticket/19736>
MacPorts <http://www.macports.org/>
Ports system for Mac OS