to build with mingw: 
PATH=$PATH:/p/fpga/fpgalink/install/bin
mkdir build
cd build
cmake -G "MinGW Makefiles" .. -DENABLE_FPGALINK=ON //-DCMAKE_BUILD_TYPE=Debug
cmake --build .

running in cmd window:
set path=%path%;p:\fpga\fpgalink\install\bin;P:\msys2-64\mingw32\bin
openFPGALoader.exe -c fx2 --pins D1:A6:D3:D2 --detect