Recently, I had to build fossil from source on Ubuntu because I needed to make a change to the source code.
It required a number of dependencies which is expected to be installed.
They are –
zlib1g and zlib1g-dev
Installing all of them together –
sudo apt-get install -y gcc zlib1g zlib1g-dev tcl-dev tk libssl libsssl-dev
Download source from fossil download page.
After untarring everything, navigate to the source directory and then the following commands –
$> ./configure $> make
This creates a binary in the current directory which can then be put in