On 21/07/17 17:10, Matthew Miller wrote: > On Fri, Jul 21, 2017 at 05:00:35PM +0100, John Hodrien wrote: >>>> Say a package has a dependency for libfoo.so.1, and 2 (or more) >>>> packages provide libfoo.so.1, how does yum decide which package to >>>> install to meet the dependency? >>> It has a series of heuristics: >>> http://yum.baseurl.org/wiki/CompareProviders Many thanks Matthew, that's a great overview. >> That's fabulous. You mean Phil could have fixed my issue by renaming the >> package priiiiiimus so that the name was longer than mesa-libGL ;) > > Tragically possible. :) > > In this case, working through the logic, it would appear that primus probably won the battle on the basis of pulling in fewer deps than mesa-libGL, but what else is already installed on the system would clearly have an effect here. Still, nice to know the logic involved.