Could you please update the instructions to work with Stretch?

[rin67630]

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I am a bit confused: which Windows toolchain am I today supposed to install if I use current Raspbian Stretch on a RasPi3 Zero or a RasPi3 a+? Is raspberry-gcc.3.0.-r3.exe the right one?

Alternatively, would it be possible to use your development on an IDE running on the own RaspberryPi and to use localhost as target address?

Thank you for your advice.