Install finch-dev by entering the following commands in the terminal:
sudo apt update sudo apt install finch-dev
Description:
text-based multi-protocol instant messaging client - development
This package contains the headers and other development files not included in the main finch package. Install this if you wish to compile your own plugins, or would like to compile programs that use the libgnt library.
Homepage: http://www.pidgin.im
Version: 1:2.12.0-1ubuntu4
Section: universe/devel