compiling for windows gives dll not found error

[rawsh]

2017/11/10 13:54:12 Failed to load qtdrv.ui.dll: Module not found.

I build with this command:

env GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ go build -ldflags "-r ." -o bin/out.exe

[StasButton]

Failed to load qtdrv.ui.dll: Module not found - same error
made - go get "github.com/visualfc/goqt/ui"
- install gcc (from .exe file)