----- Original Message ----- > From: "Sandro Mani" <manisan...@gmail.com> > To: "Development discussions related to Fedora" > <devel@lists.fedoraproject.org> > Sent: Thursday, June 11, 2015 6:01:12 PM > Subject: DNF vs YUM, $pkg, $pkg-mpi, $pkg-openmpi having same provides
> Hello, > Investigating bug #1230838, I noticed that when installing mmg3d-libs, dnf > installs Konsole output ptscotch-mpich, whereas yum-deprecated installs > scotch. Both scotch and ptscotch-mpich provide the required > libscotch.so.0()(64bit), albeit one in /usr/lib64/ and the other one in > /usr/lib64/mpich/lib/: > $ dnf repoquery --requires mmg3d-libs > [...] > libscotch.so.0()(64bit) > libscotcherr.so.0()(64bit) > [...] > $ dnf provides 'libscotch.so.0()(64bit)' > ptscotch-mpich-6.0.4-2.fc23.x86_64 : PT-Scotch libraries compiled against > mpich > Repo : rawhide > ptscotch-openmpi-6.0.4-2.fc23.x86_64 : PT-Scotch libraries compiled against > openmpi > Repo : rawhide > scotch-6.0.4-2.fc23.x86_64 : Graph, mesh and hypergraph partitioning library > Repo : rawhide > Konsole output $ dnf repoquery -l scotch.x86_64 | grep libscotch.so.0 > /usr/lib64/libscotch.so.0 > /usr/lib64/libscotch.so.0.2 > Konsole output $ dnf repoquery -l ptscotch-mpich.x86_64 | grep libscotch.so.0 > /usr/lib64/mpich/lib/libscotch.so.0 > /usr/lib64/mpich/lib/libscotch.so.0.2 > $ dnf install mmg3d-libs > [...] > Installing: > environment-modules x86_64 3.2.10-14.fc23 rawhide 117 k > hwloc-libs x86_64 1.10.1-2.fc23 rawhide 1.3 M > lzma-libs x86_64 4.32.7-13.fc22 rawhide 38 k > mmg3d-libs x86_64 4.0.2-1.fc23 rawhide 211 k > mpich x86_64 3.1.4-3.fc23 rawhide 1.1 M > ptscotch-mpich > $ yum-deprecated install mmg3d-libs > [...] > Installing: > mmg3d-libs x86_64 4.0.2-1.fc23 rawhide 211 k > Installing for dependencies: > lzma-libs x86_64 4.32.7-13.fc22 rawhide 38 k > scotch > So, whose fault is this? Packaging of dnf? Nothing relevant for this caught > my eye skimming through the packaging guidelines. > And related: trying to install some $pkg-openmpi package, I don't generally > see packages enforcing that the -openmpi version of some dependency library > is installed as opposed to just the regular libs package. Should such > requires need to be stated explicitly? > Thanks, > Sandro > -- > devel mailing list > devel@lists.fedoraproject.org > https://admin.fedoraproject.org/mailman/listinfo/devel > Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct If a package "Requires: foo" and both "bar" and "barbaz" "Provides: foo", they are handled as being equally suitable. DNF/libsolv is not going to prefer packages with shorter names. -- Radek Holý Associate Software Engineer Software Management Team Red Hat Czech
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