SDL not found - sdl-config


I’m not sure that I’m in the right place - Googled for so many reports on my
SDL problem, but found no solutions:

I’m running a SuSE9.1 (Celeron 1.7) box, and get an SDL error for a number
of apps (wesnoth-0.8 is the latest) when I try to ./configure = I get “SDL
not found …”.

I followed your faq advice, and discovered that I had no “sdl-config” file.
I have tried reinstalling SDL and the packages with the SDL error.

What have I done wrong (or how can I find out), and how can I fix it?