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Information for compiling PolyML on Windows with Cygwin.

download setup-x86_64.exe from https://cygwin.com/install.html

run it

select View >Full

Install the packages cygwin-devel, git, make, gcc-core, gcc-g++ and rlwrap

WARNING : don't choose mingwin64 ; this compiler don't work well for compiling PolyML on cygwin

download the PolyML release src from git : WARNING : don't clone the repository it is not the stable version and don't compile on windows.

https://github.com/polyml/polyml/archive/refs/tags/v5.8.2.tar.gz

untar it using the cywin64 Terminal

$ tar xvf polyml-5.8.2.tar.gz

then

• $ cd polyml-5.8.2
• $ ./configure
• $ make
• $ make compiler
• $ make install

and verify

• $ poly

Poly/ML 5.8.2 Release

"Hello!";

val it = "Hello!": string

control-D quit polyML

now you can use rlwrap for line editing and history

• $ rlwrap poly

then you are in business.

before using portmidi you have to set portmidi.dll executable

$ chmod +777 libs/portmidi.dll

And then you can compile your transformer

$ polyc -o toChan1 modifier.sml

$ ./toChan1.exe

Microsoft MIDI Mapper id=0 input=false output=true opened=false interf=MMSystem

TouchOSC Bridge id=1 input=true output=false opened=false interf=MMSystem

loopMIDI Port id=2 input=true output=false opened=false interf=MMSystem

ATM SQ id=3 input=true output=false opened=false interf=MMSystem

MIDIIN2 (ATM SQ) id=4 input=true output=false opened=false interf=MMSystem

Microsoft GS Wavetable Synth id=5 input=false output=true opened=false interf=MMSystem

TouchOSC Bridge id=6 input=false output=true opened=false interf=MMSystem

loopMIDI Port id=7 input=false output=true opened=false interf=MMSystem

playing GS wavetable

• with big latency : ./toChan1 "ATM SQ" "Microsoft GS Wavetable Synth"

• with small latency=2 fixed velocity=100 : $ ./toChan1 "ATM SQ" "Microsoft GS Wavetable Synth" 100 2

• with loopMidi you can use Asio then latency is ok

$ ./toChan1 "ATM SQ" "loopMIDI Port"