The sources of the latest stable versions of mdcore are available from SourceForge here.
Once you have downloaded and unpacked the source, change to the mdcore directory and run "configure" and "make":
The configuration script has several options which can be viewed by executing
Since mdcore is work in progress and thus in constant development, it may be advisable to download the latest version of the source code from the SourceForge Subversion repository.
You can get the latest version by executing
svn co http://svn.code.sf.net/p/mdcore/code/trunk mdcoreon the command line.