Hi davy!
Once again your code works perfectly. I must be terrible at searching for errors. Here's the full code for the compute shader where the error occurs: Compute shader - Pastebin.com. There's no additional shaders in the program. During glCompileShader the program receives a segmentation fault, no additional errors. If I remove all occurrences of sampler2DShadow it compiles without errors. I'd really appreciate if you would look into it. Sorry for the messiness.
Regards,
Marcus