I am using Webkit nightly build revision 110829 on Ubuntu 11.10. I successfully build it. Here is what I did: In the Webkit directory I run: Tools/Scripts/build-webkit --gtk Built succeeded. I tried running it by typing: Tools/Scripts/run-safari --gtk But nothing happens. I mean, the command just did not show anything. Anyone has any idea? For someone who vote down: Like I said, when I run Tools/Scripts/run-safari --gtk nothing happens. So if anyone has any idea how to run it properly please tell me. I followed this instruction: https://trac.webkit.org/wiki/BuildingGtk