What should NOT be under source control?

Question

It would be nice to have a more or less complete list over what files and/or directories that shouldn\'t (in most cases) be under source control. What do you think should be

Answer 1

If you have a runtime environment for your code (e.g. dependency libraries, specific compiler versions etc.) do not put the packages into the source control. My approach is brutal, but effective. I commit a makefile, whose role is to downloads (via wget) the stuff, unpack it, and build my runtime environment.