This project is no longer supported. Apple provides a very similar utility with their developer tools now, /usr/bin/cvs-view-diff
Mac OS X's developer tools package includes a very nice graphical diff/merge utility called FileMerge:
It has become my diff of choice in many situations. One of the places I would like to use it is in cvs to compare changes to the repository, but unfortunately cvs uses an internal version of libdiff instead of calling an external diff utility. To get around this program, I wrote a quick script called cvsdiff which emulates the behavior of cvs diff, but fetches the files in question and opens them using FileMerge instead of having cvs perform the diff.
Files: