options (CFLAGS...) for make in port without autoconf/cmake

[René J.V. Bertin]

Hi

I'm making a Portfile for qtchooser (github.com/qtproject/qtchooser) and wonder how I can pass in options like the correct CFLAGS etc. to make. This project doesn't use autoconf or cmake, just a very simple prefab Makefile.

Thanks,
René