hello, I have a problem for building gem on ubuntu 8.10, the build system complains for existing missing files.
configure: error: GL (headers) not found! you need openGL!!!
$ apt-cache show xlibmesa-gl-dev Package: xlibmesa-gl-dev Priority: optional Section: libdevel Installed-Size: 24 Maintainer: Ubuntu Core Developers ubuntu-devel-discuss@lists.ubuntu.com Original-Maintainer: Debian X Strike Force debian-x@lists.debian.org Architecture: all Source: xorg Version: 1:7.4~5ubuntu3 Depends: libgl1-mesa-dev, x11-common Filename: pool/main/x/xorg/xlibmesa-gl-dev_7.4~5ubuntu3_all.deb Size: 960
$ ls /usr/include/GL |grep gl.h gl.h