If an AU plugin is compiled on Catalina, what setting is required to make it run on Mojave? A plugin project AU we’re working on only works in Mojave if it is compiled on Mojave.
When running the Catalina-built AU on a Mojave machine, Ableton complains with “This Audio Unit plugin could not be opened”.
auval fails with
FATAL ERROR: didn't find the component
I tried setting the deployment version flag in CMake but did not fix the issue:
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.11" CACHE STRING "Minimum OS X deployment version" FORCE)
The project is being built with CMake using JUCE 6.0.8.