alt Hacker NewsNot so, obviously it is less common these days, but I still use patch(1) and friends enough to run into problems from time to time. This is especially true when you have devs on different platforms (don't even get me started on filename mangling / case-folding issues).
Oh, then this is management issue, not tooling. You need to sit down and analize where your stuff will be developled. Some very basic rules to start with: file names need to be all lower case (they are case-insensitive), use 7bit ASCII encoding for source code files. And vioala :)