The source can be downloaded from here:

QLink.c: 11 KB - the main source file 5 KB - the meta-language file transformed my mprep into a c code

Makefile: 2 KB - a makefile for gcc on the x86-64 Linux platform

QLink.mak: 2 KB - a makefile for Microsoft Visual C++

To compile QLink one needs to have QDBM installed.