generate INVALID_OPERATION if active texture != 0 in glMap[12][fd]
-rw-r--r-- 52864 Make-config
-rw-r--r-- 29240 Makefile.X11
drwxr-xr-x - bin
drwxr-xr-x - docs
drwxr-xr-x - include
drwxr-xr-x - progs
drwxr-xr-x - src