I have a problem installing libsdl1.2-dev, but not the one you have. The problem seems to come from some strange dependency problem with libgl1 -mesa-dev and libglu1-mesa-dev.
The following packages have unmet dependencies. libglu1-mesa-dev: Depends: libglu1-mesa (= 6.4.1-0ubuntu8) but 6.5.1-0ubuntu10 is to be installed Depends: libgl1-mesa-dev but it is not going to be installedor libgl-dev E: Broken packages ** Also affects: glib2.0 (Ubuntu) Importance: Untriaged Status: Unconfirmed ** Changed in: glib2.0 (Ubuntu) Importance: Untriaged => Medium Status: Unconfirmed => Needs Info -- can't install in dapper https://launchpad.net/bugs/56939 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs