On 06/10/15 14:55, Gordon Messmer wrote: > On 06/09/2015 04:53 PM, Ed Greshko wrote: >> I can't seem to get dnf to tell me what package supplies a library. > ... >> [root@f22k ~]# ll /lib64/libXv.so.1.0.0 >> -rwxr-xr-x. 1 root root 19664 Aug 17 2014 /lib64/libXv.so.1.0.0 >> [root@f22k ~]# dnf whatprovides /lib64/libXv.so.1.0.0 > > That's the correct query for a file, but not a library. > > Two things: > > First, applications don't link against libXv.so.1.0.0, they link against > libXv.so.1. It is up to the dynamic linker to locate that library within the > search path: > > $ ldd /usr/bin/xvinfo | grep libXv > libXv.so.1 => /lib64/libXv.so.1 (0x00000032d3600000) > > You'll see the same string in the first column when a library is not found, > so that's the string that you look for. > > Second, rpm generates "provides" with pathless library names. In the example > above, "xvinfo" is linked against "libXv.so.1". rpm behaves the same way. > Since the application is linked against "libXv.so.1" that is the correct > string to use when searching for a package that provides it. > > $ dnf whatprovides libXv.so.1 > libXv-1.0.10-2.fc22.i686 : X.Org X11 libXv runtime library > Repo : @System >
Thanks for the info.... But, just to be clear, the issue I'm addressing is what an average user may do in a given circumstance. Upon seeing an error message such as this one, error while loading shared libraries: /lib64/libexempi.so.3: file too short assuming they know of dnf whatprovides I think it is more likely they will simply use copy/paste and issue the command "dnf whatprovides /lib64/libexempi.so.3" Yes, the Subject I picked was not as accurate as it would be had I known then what I know now. Maybe.... :-) -- Sorta what I want to say when folks habitually complain about Fedora - https://youtu.be/ZArl8fTfub4 -- users mailing list users@lists.fedoraproject.org To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
