xorg-x11-Mesa-libGL now has a virtual provide of: Provides: libGL = 1 Likewise, xorg-x11-Mesa-libGLU has a virtual provide of: Provides: libGLU = 1 The reason for these additions should be obvious, but in case it isn't, these have been added, so that packages providing the development environments for these libs, can "Requires: libGL >= 1" and be confident that the build time dependancies are all properly met. The reason for a virtual provide/require instead of an explicit package requirement, is to allow any 3rd party implementation's runtime libs to be able to be used, instead of hard coding deps on Mesa supplied libs. In order to avoid rpm warning about missing libGL and/or libGLU dependancies, all Once these new changes are built into rawhide, 3rd party libGL implementations might choose to add virtual provides to their subpackages that provide the libGL and/or libGLU runtimes. Doing this may reduce the likelyhood of users experiencing new rpm warnings about missing libGL and/or libGLU dependancies if they do not already see similar warnings. With these new provides/requires in place, any software which links to libGL or libGLU, can simply do: BuildRequires: libGL >= 1 and/or BuildRequires: libGLU >= 1 ... and their dependancies will be met correctly, as long as they have libGL{,U} implementations installed via rpm packaging which provide the correct virtual provides as outlined above. This also should help minimal buildroot setups to ensure all dependancies get installed. Future heads up for planning: This is phase one of several longer term phases we will be making to X and libGL/libGLU packaging to make life easier on developers and package maintainers. The next major change wont occur until the modularized X11R7 is released. Once that occurs, we will be shifting to much more modularized X11 packaging, and will likely be shipping Mesa and libGLU from their own separate src.rpm packages. When that occurs, each library will have it's own separate -devel subpackage, which will likely be an even more optimal solution. As always, during each phase of change, every effort will be made to try to preserve as much backward compatibility with existing packaging as possible. If we need to make changes that may require 3rd party packaging changes, we try to minimize the impact of the changes within reasonable limits, and provide details far enough in advance for packagers to plan and roll out updated packages. If you are a packager of 3rd party libGL/libGLU implementations, please consider adding the changes I've recommended above at your earliest convenience. Thanks in advance.