libmcfp-dev 1.2.4-1 (amd64 binary) in ubuntu mantic

 There are already a few configuration parser around, but most of them
 introduce runtime dependencies. This header-only library avoids that
 and add a simple to use and complete C++ API for accessing configuration
 passed through command line arguments or configuration files. The argv
 parsing is following the POSIX standard.
 .
 Configuration is available throughout the entire program using a singleton
 object.