While trying to yum update this morning, I got
Transaction Check Error: file /usr/include/popt.h from install of popt-1.10.2.1-1.fc7 conflicts with file from package popt-1.10.2-46.fc7
Apparently, yum is trying to update popt-1.10.2-46.fc7 with popt-1.10.2.1-1.fc7, which looks strange to me.
Andras