configure cannot find KDE headers

Hello,

does someone know who to tell a configure script where to find the KDE headers?

When I try to compile a certain KDE application, configure fails with the following error: [...] checking for KDE... configure: error: in the prefix, you've chosen, are no KDE headers installed. This will fail. So, check this please and use another prefix!

I have the following KDE devel packages installed: - kdebase-kde3-dev - kdelibs-kde3-dev

Am I missing any package?

I tried the prefix returned by "kde-config --prefix": ./configure --prefix=/opt/kde3 But the error remains the same.

Do you have any ideas?

Regards, Stefan