DomTool minimally requires an SML compiler, libpcre for regex handling, libssl for communications, and rsync to publish configuration.
For Debian, the following packages are required for a standard build:
mlton libpcre3-dev libssl-dev ml-nlffigen ml-yacc rsync
You may optionally install SML/NJ packages for interactive development:
1. A Note On Compilers
To use DomTool from an interactive SML REPL session, you will need a recent version of Standard ML of New Jersey. Version 110.74 is sufficient, so packages in Debian 6 and above are adequate, for other distributions you may need to compile it manually.
Why am I referencing two different compilers here? Well, developing with SML/NJ and building release binaries with MLton is standard practice in the SML world. SML/NJ supports separate compilation and interactive use, which are very helpful during development. MLton is a whole-program optimizing compiler that produces extremely efficient binaries, at the cost of much greater compile-time time and memory usage than SML/NJ.