[PD] Gem configure cant find GL that is there

[thewade]

Hello,

I need a little help in compiling Gem. I run configure on Gem-0.9:
Finished building Auxilliary Libraries
======================================
checking for main in -lX11... yes
checking for main in -lXext... yes
checking for XF86VidModeGetAllModeLines in -lXxf86vm... yes
checking for sin in -lm... no
checking for main in -lz... no
checking for glInitNames in -lGL... no
checking for glInitNames in -lMesaGL... no
OpenGL is mandatory

but:
[wade at musicbox Gnu]$ ldconfig -p | grep GL.so
        libGL.so.1 (libc6,x86-64) => /usr/X11R6/lib64/libGL.so.1
        libGL.so.1 (libc6,x86-64) => /usr/lib64/libGL.so.1
        libGL.so.1 (libc6) => /usr/X11R6/lib/libGL.so.1
        libGL.so.1 (libc6) => /usr/lib/libGL.so.1
        libGL.so (libc6,x86-64) => /usr/X11R6/lib64/libGL.so
        libGL.so (libc6,x86-64) => /usr/lib64/libGL.so
        libGL.so (libc6) => /usr/X11R6/lib/libGL.so
        libGL.so (libc6) => /usr/lib/libGL.so

I know Mesa isint installed, but GL is!
Is this a Mesa problem really?

Fedora Core 3 test 1, gcc 3.4.1-2, standard kernel 2.6.8.1

thanks for the help!
-thewade