How to Make a Patch for an Open Source Project
By eHow Computers Editor
One of the greatest advantages of open source is the ability to view and modify the source code. For programmers, this means diagnosing and fixing problems themselves instead of waiting for someone else to do it. In order to contribute this fix to the developers of the open source project, you need to send them a patch.
diffprogram has something to work from.
diffprogram compares two files and records the differences between them. This will generate the patch, so later the patch program can add these changes to the developer's source code. For every file you modified, you need to run the
diffprogram like this:
"patch -uN eval.old.c eval.c > eval.patch"