pragma GCC diagnostic is not available for 4.0.1

Change-Id: I4aa9fb45c391c8b17d713e77a8a6e3338005441b

sd/Library_sd.mk

@@ -543,7 +543,8 @@ else
 
 $(eval $(call gb_Library_add_objcxxobjects,sd,\
     sd/source/ui/remotecontrol/BluetoothServer \
-    sd/source/ui/remotecontrol/OSXBluetooth \
+    sd/source/ui/remotecontrol/OSXBluetooth,\
+    -Wno-error \
 ))
 
 $(eval $(call gb_Library_add_libs,sd,\

sd/source/ui/remotecontrol/OSXBluetooth.mm

@@ -6,7 +6,6 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
  */
-
 #include <osl/conditn.hxx> // Include this early to avoid error as check() gets defined by some SDK header to empty
 
 #include <premac.h>
@@ -43,12 +42,6 @@
     pSocket = NULL;
 }
 
-// The Xcode 3 compiler warns if we don't implement all methods of the
-// IOBluetoothRFCOMMChannelDelegate protocol. In later SDKs they are
-// marked as @optional.
-
-#pragma GCC diagnostic ignored "-Wprotocol"
-
 @end
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */