Dmitry reports:

After upgrade to macOS 11.3 on aarch64 and with XCode 12.5 consistently getting the following for 'make images'

src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_MidiUtils.c:258:31: error: cast to smaller integer type 'MIDIClientRef' (aka 'unsigned int') from 'void *' [-Werror,-Wvoid-pointer-to-int-cast]
static MIDIClientRef client = (MIDIClientRef) NULL;
                              ^~~~~~~~~~~~~~~~~~~~
/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_MidiUtils.c:259:29: error: cast to smaller integer type 'MIDIPortRef' (aka 'unsigned int') from 'void *' [-Werror,-Wvoid-pointer-to-int-cast]
static MIDIPortRef inPort = (MIDIPortRef) NULL;
                            ^~~~~~~~~~~~~~~~~~
/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_MidiUtils.c:260:30: error: cast to smaller integer type 'MIDIPortRef' (aka 'unsigned int') from 'void *' [-Werror,-Wvoid-pointer-to-int-cast]
static MIDIPortRef outPort = (MIDIPortRef) NULL;
                             ^~~~~~~~~~~~~~~~~~
/jdk/src/java.desktop/macosx/native/libjsound/PLATFORM_API_MacOSX_MidiUtils.c:466:32: error: cast to smaller integer type 'MIDIEndpointRef' (aka 'unsigned int') from 'void *' [-Werror,-Wvoid-pointer-to-int-cast]
    MIDIEndpointRef endpoint = (MIDIEndpointRef) NULL;
                               ^~~~~~~~~~~~~~~~~~~~~~
4 errors generated.
make[3]: *** [/jdk/build/macosx-aarch64-server-release/support/native/java.desktop/libjsound/PLATFORM_API_MacOSX_MidiUtils.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [java.desktop-libs] Error 2
make[2]: *** Waiting for unfinished jobs....
ERROR: Build failed for targets 'clean all' in configuration 'macosx-aarch64-server-release' (exit code 2)