Create an NSAutoreleasePool in wxMacWakeUp().

An auto-release pool is needed in this function because it can be called from
another thread which has no reason to have a pre-existing pool, but it does
allocate NSEvent object which is auto-released, resulting in warnings if no
pool available.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62310 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/cocoa/utils.mm

@@ -52,9 +52,27 @@ void wxBell()
 
 void wxMacWakeUp()
 {
-	NSEvent* wakeupEvent = [NSEvent otherEventWithType:NSApplicationDefined location:NSZeroPoint
+    // ensure that we have an auto release pool in place because the event will
-										 modifierFlags:NSAnyEventMask timestamp:0 windowNumber:0 context:nil subtype:0 data1:0 data2:0];
+    // be autoreleased from NSEvent:otherEventWithType and we might not have a
-	[NSApp postEvent:wakeupEvent atStart:NO];
+    // global pool during startup or shutdown and we actually never have it if
+    // we're called from another thread
+    //
+    // FIXME: we can't use wxMacAutoreleasePool here because it's in core and
+    //        we're in base
+    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+    NSEvent* wakeupEvent = [NSEvent otherEventWithType:NSApplicationDefined
+                                    location:NSZeroPoint
+                                    modifierFlags:NSAnyEventMask
+                                    timestamp:0
+                                    windowNumber:0
+                                    context:nil
+                                    subtype:0
+                                    data1:0
+                                    data2:0];
+    [NSApp postEvent:wakeupEvent atStart:NO];
+
+    [pool release];
 }
 
 #endif // wxUSE_BASE
@@ -323,4 +341,4 @@ wxBitmap wxWindowDCImpl::DoGetAsBitmap(const wxRect *subrect) const
 
 #endif // wxUSE_GUI
 
-#endif // wxOSX_USE_COCOA
+#endif // wxOSX_USE_COCOA