slackbuilds/libraries/log4shib

log4shib is a forked version of log4cpp that has been created for the
Shibboleth project to ensure a consistent, working snapshot that
builds reliably on the necessary platforms.

Log for C++ is a library of classes for flexible logging to files,
syslog, and other destinations. It is modeled after the Log for Java
library and stays as close to its API as is reasonable.