[MacPorts] #21730: Update simage to use giflib dependency instead of libungif

[MacPorts]

#21730: Update simage to use giflib dependency instead of libungif
-----------------------------------------+----------------------------------
 Reporter:  singingwolfboy@…             |       Owner:  css   
     Type:  defect                       |      Status:  new   
 Priority:  Normal                       |   Milestone:        
Component:  ports                        |     Version:  1.8.1 
 Keywords:                               |        Port:  simage
-----------------------------------------+----------------------------------
 I believe the libungif port is deprecated, to be replaced by giflib. This
 patch should take care of that.

-- 
Ticket URL: <http://trac.macports.org/ticket/21730>
MacPorts <http://www.macports.org/>
Ports system for Mac OS