Hi im trying to install wxGTK in gentoo using emerge wxGTK but i get an error:

checking for GL/gl.h... no
configure: error: OpenGL libraries not available

please help

do you have mesa installed ( NOTE: do not install it if you have nvidia's or ati's driver)

i have nvidia what do i do?

it's been awhile since I used gentoo, but when I was using it I never used portage to install the nvidia driver, I liked the nvidia installer better. you could try to get the nvidia driver of your version from nvidia's site, extract it, and copy the NVIDIA-xxxxxxx/usr/include/GL directory to /usr/include, or get the mesa source package and copy the includes from it to your /usr/include.

i got past the point of gl.h i put the include of the mesa soruce file in my usr/include but now i get this error

checking for -lGL... no
checking for -lMesaGL... no

do you have the nvidia libs installed? the nvidia installer installs a gl lib and symlinks everything back to it. here is mine:

$ ls -l /usr/lib | grep GL
-rw-r--r-- 1 root root 653 2005-04-17 10:22 libGL.la
lrwxrwxrwx 1 root root 10 2005-04-17 10:22 libGL.so -> libGL.so.1*
lrwxrwxrwx 1 root root 17 2005-04-17 10:22 libGL.so.1 -> libGL.so.1.0.7174*
-rwxr-xr-x 1 root root 485260 2005-04-17 10:22 libGL.so.1.0.7174*
lrwxrwxrwx 1 root root 21 2005-04-17 10:22 libGLcore.so.1 -> libGLcore.so.1.0.7174*
-rwxr-xr-x 1 root root 7626156 2005-04-17 10:22 libGLcore.so.1.0.7174*

here is mine

matrix@matrix matrix $ ls -l /usr/lib | grep GL
-rw-r--r-- 1 root root 679556 Apr 23 16:29 libGLU.a
-rw-r--r-- 1 root root 752 Apr 23 16:29 libGLU.la
lrwxrwxrwx 1 root root 13 Apr 23 16:29 libGLU.so -> libGLU.so.1.3
lrwxrwxrwx 1 root root 13 Apr 23 16:29 libGLU.so.1 -> libGLU.so.1.3
-rwxr-xr-x 1 root root 584733 Apr 23 16:29 libGLU.so.1.3
lrwxrwxrwx 1 root root 21 Apr 21 08:10 libGLcore.so.1 -> libGLcore.so.1.0.7174
-rwxr-xr-x 1 root root 7626156 Apr 21 08:10 libGLcore.so.1.0.7174
-rw-r--r-- 1 root root 28586 Apr 23 16:29 libGLw.a
lrwxrwxrwx 1 root root 13 Apr 23 16:29 libGLw.so -> libGLw.so.1.0
lrwxrwxrwx 1 root root 13 Apr 23 16:29 libGLw.so.1 -> libGLw.so.1.0
-rwxr-xr-x 1 root root 27198 Apr 23 16:29 libGLw.so.1.0

you have no libGL.so.1.0.7174 ( the nvidia opengl library). you will have to install a working nvidia install.