drwxr-xr-x root       root             4096 ./usr
drwxr-xr-x root       root             4096 ./usr/include
drwxr-xr-x root       root             4096 ./usr/include/GL
-rw-r--r-- root       root           426468 ./usr/include/GL/glcorearb.h
-rw-r--r-- root       root           854485 ./usr/include/GL/glext.h
-rw-r--r-- root       root            79877 ./usr/include/GL/gl.h