According to SDL3_Mixer's CMakeLists, FluidSynth isn't vendored and will be disabled when SDLMIXER_VENDORED is enabled. In external, most of the vendored backends are there as submodules but fluidsynth is nowhere to be seen. I'm not sure if this has anything to do with FluidSynth's LGPL-2.1 license because other backends like flac, libgme, mpg123 use LGPL-2.1 but are still vendored. If anything I'm just curious to know the reason behind excluding FluidSynth.
According to SDL3_Mixer's CMakeLists, FluidSynth isn't vendored and will be disabled when
SDLMIXER_VENDOREDis enabled. Inexternal, most of the vendored backends are there as submodules butfluidsynthis nowhere to be seen. I'm not sure if this has anything to do with FluidSynth's LGPL-2.1 license because other backends like flac, libgme, mpg123 use LGPL-2.1 but are still vendored. If anything I'm just curious to know the reason behind excluding FluidSynth.