Demonstrate newer macOS Cocoa framework.

Makefile

@@ -29,7 +29,7 @@ CC := gcc
 LD := gcc
 
 ifeq ($(strip $(macosx)),true)
-  LDFLAGS += -framework Carbon -framework IOKit
+  LDFLAGS += -framework Cocoa -framework IOKit
   JAVAC := javac
   MANYMOUSEJNILIB := libManyMouse.jnilib
   JNICFLAGS += -I/System/Library/Frameworks/JavaVM.framework/Headers

README.md

@@ -203,8 +203,8 @@ Thanks to Thomas Weibel for the Matlab work.
   ManyMouse from any of the official Mac application layers. This code may or
   may not work on Darwin (we're not sure if IOKit is available to that
   platform); reports of success are welcome. If you aren't already, you will
-  need to make sure you link against the "Carbon" and "IOKit" frameworks once
-  you add ManyMouse to your project.
+  need to make sure you link against the "IOKit" and either "Cocoa" or
+  "Carbon" frameworks once you add ManyMouse to your project.
 - Support for other platforms than Mac OS X, Linux, and Windows is not
   planned, but contributions of implementations for other platforms are
   welcome.

example/test_manymouse_sdl2.c

@@ -19,7 +19,12 @@
 
 #include "manymouse.h"
 #define SDL_MAIN_HANDLED
+#ifdef __APPLE__
+// Still the SDL2 header, but different header search behavior.
+#include <SDL.h>
+#else
 #include <SDL2/SDL.h>
+#endif
 
 #define MAX_MICE 128
 #define SCROLLWHEEL_DISPLAY_TICKS 100

macosx_hidutilities.c

@@ -32,7 +32,7 @@
  * Scroll down for "-- END HID UTILITIES --" to see the ManyMouse glue code.
  */
 
-#include <Carbon/Carbon.h>
+#include <Cocoa/Cocoa.h>
 
 #include <IOKit/IOTypes.h>
 // 10.0.x