By Sebastian Kurfürst and Ingmar Schlecht
We all want to make TYPO3 even better than it is, and many people want to contribute with bugfixes. Often, it is hard for newcomers to use the tools most effectively and in a way the core team can use their contributions (patches, etc...).
Intended Audience
This document is made for all TYPO3 developers who want to contribute code in the form of bug fixes. Besides that, it is intended for people with a professional background who use and modify TYPO3 on a daily basis, and want to let their improvements float back into the core.
Find a bug
Go to http://bugs.typo3.org and look for a bug which suits you. If you want to fix the bug, add a short note.
The TYPO3 source layout
You should seperate the data of your development installation (dummy package) and the source files. For that, you should use symlinks (or junctions under Windows).
You should have one unmodified source tree ready, which you don't touch. Before you start digging into the code, copy this source tree to a different location. Modify only the new one.
Now, go and fix the bug by editing TYPO3 core files.
After you fixed the bug, it is important to upload what you did to the bugtracker.
