Install libax25-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libax25-dev
Description:
ax25 library development files
This library is used for applications that use the ax25 protocol. Included are routines to do ax25 address parsing, common ax25 application config file parsing, etc. This development library package includes some man pages and include files for compiling applications which use libax25.
Homepage: http://www.linux-ax25.org/wiki/Libax25
Version: 0.0.12-rc4-2
Section: universe/libdevel