Implement optimised drawing operations for OS X. Didn't see any reduction in
CPU usage unfortunately, but at least we're now using the native pixel format
of our server which avoids a conversion on the server side.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4504 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/vncviewer/CMakeLists.txt b/vncviewer/CMakeLists.txt
index 12cd8ae..524a007 100644
--- a/vncviewer/CMakeLists.txt
+++ b/vncviewer/CMakeLists.txt
@@ -23,7 +23,9 @@
 
 if(WIN32)
   set(VNCVIEWER_SOURCES ${VNCVIEWER_SOURCES} Win32PixelBuffer.cxx)
-elseif(NOT APPLE)
+elseif(APPLE)
+  set(VNCVIEWER_SOURCES ${VNCVIEWER_SOURCES} OSXPixelBuffer.cxx)
+else()
   set(VNCVIEWER_SOURCES ${VNCVIEWER_SOURCES} X11PixelBuffer.cxx)
 endif()