If you want to hack Dezyne yourself, it is recommended to use the latest version from the Git repository:
git clone git://git.savannah.nongnu.org/dezyne
If you are unable to use Guix when building Dezyne from a Git checkout, the following are the required packages in addition to those mentioned in the installation instructions (see Requirements).
./autogen.sh to generate the build system infrastructure
using Autoconf and Automake.
make as usual.