Thanks for the advice on installing Free Pascal. I managed to install Free
Pascal & Lazarus by using the DEB files here:
sourceforge.net/.../showfiles.php?group_id=89339
Note that I had to use a terminal and enter a sudo command to install
libcurl-dev. The command was something like:
sudo apt-get libcurl-dev install
and now I have Lazarus install and working fine.