Compilation of Lyx 1.1.4

[Dirk Feyerabend]

Hi, I'm running Lyx 1.0.1 on SUSE 6.2. Recently I wanted to upgrade to 1.1.4. But if I try to run "./configure" I get the following error. X-Libraries not found. If you work under Linux check wether you have the development-packages installed. Which development packages are meant by that and why does Lyx 1.0.1 run fine?