Do you have nvidia-glx installed? That package diverts some files in the xlibmesa-gl package, which leads to the dangling symlink /usr/lib/libGL.so. Here's what "dpkg -L xlibmesa-gl" prints for me:
/. /usr /usr/X11R6 /usr/X11R6/lib /usr/X11R6/lib/libGL.so.1.2 diverted by nvidia-glx to: /usr/X11R6/lib/nvidia/libGL.so.1.2.xlibmesa /usr/share /usr/share/doc /usr/share/doc/xlibmesa-gl /usr/share/doc/xlibmesa-gl/copyright /usr/share/doc/xlibmesa-gl/NEWS.Debian.gz /usr/share/doc/xlibmesa-gl/changelog.Debian.gz /usr/lib /usr/X11R6/lib/libGL.so.1 diverted by nvidia-glx to: /usr/X11R6/lib/nvidia/libGL.so.1.xlibmesa /usr/lib/libGL.so.1 diverted by nvidia-glx to: /usr/lib/nvidia/libGL.so.1.xlibmesa /usr/lib/libGL.so.1.2 diverted by nvidia-glx to: /usr/lib/nvidia/libGL.so.1.2.xlibmesa And nvidia-glx does not contain the file /usr/lib/libGL.so.1.2, so the symlink /usr/lib/libGL.so in the xlibmesa-gl-dev package points nowhere. :-( This issue is long known, see http://bugs.debian.org/208198 for details. It became finally fixed in version 1.0.7667-2 of nvidia-glx, which is in experimental. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]