[MacPorts] #35423: org.macports.build for port ffmpeg returned: command execution failed

[MacPorts]

#35423: org.macports.build for port ffmpeg returned: command execution failed
--------------------------------+-------------------------------------------
 Reporter:  alanl852@…          |       Owner:  macports-tickets@…                   
     Type:  defect              |      Status:  new                                  
 Priority:  High                |   Milestone:                                       
Component:  ports               |     Version:  2.1.2                                
 Keywords:                      |        Port:  opencv                               
--------------------------------+-------------------------------------------
 XXX-MacBook-Pro:~ alanl852$ sudo port install opencv configure.compiler
 =llvm-gcc-4.2
 --->  Computing dependencies for opencv
 --->  Dependencies to be installed: ffmpeg ilmbase gsed jasper openexr
 --->  Fetching archive for ffmpeg
 --->  Attempting to fetch ffmpeg-0.7.13_0+mmx.darwin_12.x86_64.tbz2 from
 http://packages.macports.org/ffmpeg
 --->  Fetching distfiles for ffmpeg
 --->  Verifying checksum(s) for ffmpeg
 --->  Extracting ffmpeg
 --->  Applying patches to ffmpeg
 --->  Configuring ffmpeg
 --->  Building ffmpeg
 Error: org.macports.build for port ffmpeg returned: command execution
 failed
 Error: Failed to install ffmpeg
 Please see the log file for port ffmpeg for details:
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_multimedia_ffmpeg/ffmpeg/main.log
 Error: The following dependencies were not installed: ffmpeg ilmbase gsed
 jasper openexr
 To report a bug, follow the instructions in the guide:
     http://guide.macports.org/#project.tickets
 Error: Processing of port opencv failed

 How do I solve this problem?
 I am on Mountain Lion, not sure if it makes the different.
 I am new Macports.

 Thanks

-- 
Ticket URL: <https://trac.macports.org/ticket/35423>
MacPorts <http://www.macports.org/>
Ports system for Mac OS