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During the course of Shibboleth development, the original author orphaned the library and a set of patches was locally applied to produce a custom package to correct some thread safety and shutdown issues in the code. The project has since revived but a sync-up has not yet occurred. You MUST use the Internet2-supplied version or you will not have a reliable package.
The locally produced source package is available at http://shibbolethsourceforge.internet2.edunet/downloadsprojects/log4cpp-0.3.5rc1.tar.gz/files/
For now, refer to the BuildingShibboleth topic for build notes.%COMMENT%