[DiapDealer]

I'd say your first step will be searching the CMake configuration files (CMakeLists.txt) and making sure all "if (MSVC)" and/or "if ( WIN32 )" sections are ported to make sense in a MinGW environment. It's likely to be a fairly daunting task. You're basically going to be telling cmake how to create the proper make files with the "MinGW Makefiles" Generator from the ground up -- since the current included configurations only take the "NMake" and "Visual Studio" Generators into consideration on the Windows platform.