Darwin: Fix compilation/linking problems

hw/darwin/Makefile.am

@@ -48,7 +48,7 @@ Xquartz_LDADD = \
 	$(top_builddir)/miext/rootless/librootless.la \
 	$(top_builddir)/miext/rootless/safeAlpha/libsafeAlpha.la \
 	$(top_builddir)/miext/rootless/accel/librlAccel.la \
-	$(DARWIN_LIBS) $(XSERVER_LIBS) -lXplugin
+	$(DARWIN_LIBS) $(XSERVER_LIBS) $(XSERVER_SYS_LIBS) -lXplugin
 
 Xquartz_LDFLAGS =  \
 	-XCClinker -Objc \

hw/darwin/darwinEvents.c

@@ -154,8 +154,7 @@ static void DarwinUpdateModifiers(
  * are held down during a "context" switch -- otherwise, we would miss the KeyUp.
  */
 static void DarwinReleaseModifiers(void) {
-	xEvent e;
-	DarwinUpdateModifiers(&e, KeyRelease, COMMAND_MASK(-1) | CONTROL_MASK(-1) | ALTERNATE_MASK(-1) | SHIFT_MASK(-1));
+	DarwinUpdateModifiers(KeyRelease, COMMAND_MASK(-1) | CONTROL_MASK(-1) | ALTERNATE_MASK(-1) | SHIFT_MASK(-1));
 }
 
 /*

hw/darwin/darwinKeyboard.c

@@ -1070,7 +1070,7 @@ int DarwinModifierStringToNXKey(const char *str)
  *      This allows the ddx layer to prevent some keys from being remapped
  *      as modifier keys.
  */
-Bool LegalModifier(unsigned int key, DevicePtr pDev)
+Bool LegalModifier(unsigned int key, DeviceIntPtr pDev)
 {
     return 1;
 }