I noticed something odd about the papi package. It contains two copies of the DSO which provides the soname "libpapi.so": soname: libpapi.so * /usr/lib64/libpapi.so.5.0.1 (from papi-5.0.1-2.fc18.x86_64) /usr/lib64/libpapi.so.5.0.1.0 (from papi-5.0.1-2.fc18.x86_64) The files are not bit-wise identical, but appear to be equivalent in all aspects that matter.
A patch has been submitted and accepted into the upstream papi package: http://lists.eecs.utk.edu/pipermail/perfapi-devel/2012-November/005840.html This has been incorporated into papi-5.0.1-3.
Florian said it the duplicated library has been removed and things now look good in papi-5.0.1-3.