The attached patch makes the trunk iaxclient lib, testcall, vtestcall, videotest, and iaxcomm compile and run under Mac OS X using MacPorts (see http://www.macports.org/\) with the following ports installed:
port install speex-devel
port install ffmpeg +libogg +theora +vorbis +x264
Enjoy,
Erik
Fixes build on Mac OS X using MacPorts