Install libcrack2-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libcrack2-dev
Description:
pro-active password checker library - development files
Header files, static libraries, documentation, and symbolic links developers using cracklib2 will need. . If you want to build software using cracklib2 you will need to install this package. For developing Python based applications for cracklib2 you need to install python-cracklib instead.
Homepage: http://sourceforge.net/projects/cracklib
Version: 2.9.2-5build1
Section: libdevel