#19 mencoder is called with a invalid option on Mac OSX

[Tiger!P]

When trying to convert a .avi file to a X5 file, the program calls mencoder
with an invalid option.
The following log is created:
--- /Applications/iriverter.app/Contents/Resources/Java/./mencoder /
Users/stefan/Movies/Najib Amhali - Veni Vidi Vici NL.avi -o /Users/
stefan/Movies/Najib Amhali - Veni Vidi Vici NL.x5.avi -ovc xvid -
xvidencopts bitrate=256:max_bframes=0 -oac mp3lame -lameopts
mode=0:cbr:br=192 -vf-add filmdint=io=25000:14000 -vf-add
scale=160:85,expand=160:128 -vf-add harddup -ofps 14.0 -srate
44100
>>> MEncoder dev-CVS--4.0.1 (C) 2000-2006 MPlayer Team
>>> AltiVec found
>>> CPU: PowerPC
>>> -xvidencopts is not an MEncoder option
>>>
>>> Exiting... (error parsing cmdline)

This is probably because the mencoder is not build with xvid support for
OSX. I noticed that at least the version that is available via darwinports
(.org) does not have that enabled.
please supply a mencoder version with xvid support with the Mac OSX
release of iriverter.