Ahh thanks for pointing that out. In fact, we broke the functionality of JUCE_USE_CUSTOM_AU3_STANDALONE_APP
with JUCE 5.
I’ve now fixed this on develop and also renamed the macro to JUCE_USE_CUSTOM_PLUGIN_STANDALONE_APP
. Simply define this to 1 in your AppConfig.h
(or add it as a custom compiler pre-processor definition) and then use the START_JUCE_APPLICATION
macro as you would in a normal standalone app.