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Installing Munin on RHEL 6 from RPM available at, http://pkgs.repoforge.org/ most installs were ok but when installing munin-node got this: 

rpm -Uvh munin-node-1.2.5-1.el5.rf.noarch.rpm
warning: munin-node-1.2.5-1.el5.rf.noarch.rpm: Header V3 DSA/SHA1 Signature, key ID 6b8d79e6: NOKEY
error: Failed dependencies:
        perl(LWP::Simple) is needed by munin-node-1.2.5-1.el5.rf.noarch

Spent a while looking for an PRM for LWP::Simple (want to avoid CPAN to automate future installations easier). I did some yum searches. Searched some Repos. I tried a few LWP packages but eventually through googling came to this page:

http://rpmfind.net/linux/rpm2html/search.php?query=perl(LWP%3A%3ASimple)

This lists the package: perl-libwww-perl on a lark I installed this package via yum. This satsified the LWP:Simple dependency. But I have no idea why... plus a little frustrated it didn't come up in earlier searches.

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perl-libwww-perl contains the entire CPAN libwww-perl package, including LWP/Simple.pm. Although I'm sure how RPM dependencies work, but it seems to me that RPM automatically adds Provides: perl(LWP::Simple) = 6.00 when the RPM package is being built.

$ perl -E 'say for grep {-f} map {"$_/LWP/Simple.pm"} @INC'
/usr/share/perl5/vendor_perl/LWP/Simple.pm

$ ./usr/lib/rpm/perl.prov "/usr/share/perl5/vendor_perl/LWP/Simple.pm"
perl(LWP::Simple) = 6.00
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  • Thank you... at least explains why it satisfies the dependency. As I wanted to avoid CPAN in installing these modules. I am curious if/why a yum search for variations on simple and lwp did not return this package. Would be useful.
    – Gray Race
    Commented Jan 31, 2012 at 18:36
  • I think it is a histroical misnomer. All other perl RPMS are named perl-TopPackage or some variation thereof. LWP is the only one breaking ranks.
    – Alien Life Form
    Commented Feb 7, 2012 at 11:03

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