missing mkoctfile-3.6.3 on OS X

[franklin]

Hello,

I am using OSX 10.8.2 and I compiled octave from source about a month  
ago. I am now trying to use an svm library that requires making octave  
files using mex.

When I call the command mkoctfile I receive:

sh: /sw/bin/mkoctfile-3.6.3: No such file or directory
warning: unable to find mkoctfile in expected location:  
`/sw/bin/mkoctfile-3.6.3'
warning: mkoctfile exited with failure status

From my understanding, I cannot install octave-headers because I'm on  
a mac and the compiling should possible with xcode installed. I cannot  
find the mkoctfile anywhere.

Any suggestions would be much appreciated!
Matt