Same problem here (using libcegui-mk2-dev). Problem can be seen like this:
$ pkg-config --libs CEGUI-OPENGL -lCEGUIBase -lCEGUIOpenGLRenderer $ dpkg --listfiles libcegui-mk2-dev \ |grep CEGUIOpenGLRenderer $ dpkg --listfiles libcegui-mk2-0c2a \ | grep CEGUIOpenGLRenderer Which shows that the libCEGUIOpenGLRenderer.so file is not installed for some reason. -- CEGUI OpenGL rendering broken https://launchpad.net/bugs/32654 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs