The munge plugin is built only if it finds the munge headers. Do you have them installed? E.g. the package "munge-devel" on RHEL/CentOS with the EPEL repo, or "libmunge-dev" on Debian/Ubuntu.
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Janne Blomqvist, D.Sc. (Tech.), Scientific Computing Specialist
Aalto University School of Science, PHYS & NBE
+358503841576 ||
janne.b...@aalto.fi