MySQL support requires some changes to Digitemp itself,
However, you do need a few things to compile it:

• The MySQL development libraries (if your MySQL 'include's and 'lib's aren't
  in /usr/local/mysql then change it in the 'Makefile'

• Zlib - MySQL requires zlib to compile things against
  their libraries.
  
  If your using debian, just run
  apt-get install zlib1g  and
  apt-get install zlib1g-dev
  

• Since my last update 3.2.0, it seems 3.3.2 needs another library.
  This library is called liblockdev. Debian users run the following
  commands to install it.
  
  apt-get install liblockdev1  and
  apt-get install liblockdev1-dev