This repository contains a standalone redistribution of the Japron library by Dr. Antoine Mine', licensed under the LGPL license.
Additionally, it may include small fixes and modifications (for which no guarantee whatsoever is provided).
An unmodified, vanilla version is available under the tag mine_2010.
Refer to the README file.
This version of the library compiles successfully under Debian 9 after installing libapron-dev and libgmp-dev.