OSX: Implement TaskbarManager for Mac OS X

This implements count badge, progress bar, and icon overlay.
It uses the NSDockTile API which is available since OS X 10.5.
The code compiles and run on older system but without doing
anything.

1 files changed, 4 insertions, 0 deletions

diff --git a/configure b/configure
index 567cb096d7..5499ceccb1 100755
--- a/configure
+++ b/configure
@@ -4001,6 +4001,10 @@ else
 		echo "win32"
 		_taskbar=yes
 		;;
+	darwin*)
+		echo "osx"
+		_taskbar=yes
+		;;
 	*)
 		if test "$_libunity" = yes; then
 			echo "unity"