Question: how do I add WEB_MIDI_API to my cmake subfolder file?

[shemeshg]

• Expected behavior and actual behavior.

I'd like to compile my Qt project with emscripten,.
I guess I need to add some definitions in my cmake file.

https://github.com/shemeshg/RtMidiWrap/blob/master/src/RtMidiRouterLib/RtMidiWrap/RtMidiLib/CMakeLists.txt

But I don't know where,

• Steps to reproduce the problem.

I've searched the documentation
https://www.music.mcgill.ca/~gary/rtmidi/#:~:text=RtMidi%3A%3AopenVirtualPort()%20function.-,Compiling,-In%20order%20to

and found nothing about emscripten, yet I can see #if defined(__WEB_MIDI_API__) in the RtMidi.cpp

However other platforms are well documented in this table (Had no problem)

• Specifications like the version of the project, operating system, or hardware.

Documentation question - NA