[ptx] Hugin OSX Build "Bus Error"

[Pablo d'Angelo]

Hi,

> 
> I'm getting a SIGSEGV on the last RPM snapshot, and also on the cvs
> head, when using a fresh Fedora Core 2 box.  The RPM install ensured I
> had all the versions of fftw and libpano12 installed, etc.  I have not
> yet pulled out the debugger to figure out exactly where it dies, but it
> is just after the splash screen appears on the screen.

Sorry, will check in some more stuff soon, which hopefully solves that
crash.

I'll also add the mac changes suggested here to the CVS.

ciao
  Pablo