There is a cyclic dependancy between Geo::Distance and Geo::Distance::XS
$ cpanspec -b Geo::Distance
error: Failed build dependencies:
perl(Geo::Distance::XS) is needed by perl-Geo-Distance-0.16-
1.fc12.src
/usr/bin/rpmbuild exited with value 1
$ cpanspec -b Geo::Distance::XS
error: Failed build dependencies:
perl(Geo::Distance) >= 0.16 is needed by perl-Geo-Distance-XS-
0.07-1.fc12.src
/usr/bin/rpmbuild exited with value 1