Use filemerge from the command line
Useful commandline tools for [FileMerge] a part of Xcode.
% fmdiff <file1> <file2>
For use with Subversion:
% svn diff --diff-cmd fmdiff <fileunderversioncontrol>
Useful commandline tools for [FileMerge] a part of Xcode.
% fmdiff <file1> <file2>
For use with Subversion:
% svn diff --diff-cmd fmdiff <fileunderversioncontrol>