Update install_macosx_libraries Makefile target

src/native/Makefile

@@ -71,8 +71,10 @@ clean:
 
 install_macosx_libraries: $(TARGET)
 	rm -rf ../../library/macosx/*
-	# download and install latest gstreamer-1.0 package for x86_64 from
+	# download and install latest gstreamer-1.0 devel package for x86_64 from
 	# https://gstreamer.freedesktop.org/data/pkg/osx/
+	# put https://raw.githubusercontent.com/GStreamer/gst-plugins-bad/master/gst-libs/gst/gl/cocoa/gstglcontext_cocoa.h into
+	# /Library/Frameworks/GStreamer.framework/Versions/1.0/Headers/gst/gl/cocoa
 	mkdir -p ../../library/macosx
 	cp /Library/Frameworks/GStreamer.framework/Libraries/*.dylib ../../library/macosx
 	# pip install osxrelocator
@@ -86,5 +88,7 @@ install_macosx_libraries: $(TARGET)
 	# libglvideo.so is required for the python script below
 	cp libglvideo.so ../../library/macosx/libglvideo.jnilib
 	python ./macosx_remove_extra_libs.py
+	# silence runtime error
+	rm -f ../../library/macosx/gstreamer-1.0/libgstopenjpeg.so
 
 .PHONY: iface.h clean install_macosx_libraries