Install libgsasl7-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libgsasl7-dev
Description:
Development files for the GNU SASL library
GNU SASL is an implementation of the Simple Authentication and Security Layer framework and a few common SASL mechanisms. SASL is used by network servers (e.g., IMAP, SMTP) to request authentication from clients, and in clients to authenticate against servers. . This package contain all files necessary for developing programs that use GNU SASL. You will need this package if you want to build a program that uses the GNU SASL library.
Homepage: http://www.gnu.org/software/gsasl/
Version: 1.8.0-8ubuntu3
Section: universe/devel