FYI, qdiff is a fast binary files differ that can detect binary insertions/deletions/substitutions with colorful outputs, written by Johannes Overmann. qdiff is the only fast and versatile binary files differ that's available in the FOSS would, others don't come close to it. However, the latest version,
is more than 8 years old. It does not compile under the current g++ any more. Moreover, even after I managed to get it compiles fine, it causes "segmentation fault" when executed.
Now it works and have a new home:
Check out http://www.nongnu.org/qdiff/
The updated version is 0.9.1, which is available at
It now uses autoconf + automake instead of a fixed Makefile. Please give it a try, and let me know the result.
If you think qdiff is useful, please help me bump up the thread if it falls behind the 2nd index page in this forum.