Add another missing CMake macro

cmake/FindOpenGLES2.cmake

@@ -19,6 +19,42 @@
 # Win32, Apple, and Android are not tested!
 # Linux tested and works
 
+# Slightly customised framework finder
+macro(findpkg_framework fwk)
+  if(APPLE)
+    set(${fwk}_FRAMEWORK_PATH
+      ${${fwk}_FRAMEWORK_SEARCH_PATH}
+      ${CMAKE_FRAMEWORK_PATH}
+      ~/Library/Frameworks
+      /Library/Frameworks
+      /System/Library/Frameworks
+      /Network/Library/Frameworks
+      ${CMAKE_CURRENT_SOURCE_DIR}/lib/macosx/Release
+      ${CMAKE_CURRENT_SOURCE_DIR}/lib/macosx/Debug
+    )
+    # These could be arrays of paths, add each individually to the search paths
+    foreach(i ${OGRE_PREFIX_PATH})
+      set(${fwk}_FRAMEWORK_PATH ${${fwk}_FRAMEWORK_PATH} ${i}/lib/macosx/Release ${i}/lib/macosx/Debug)
+    endforeach(i)
+
+    foreach(i ${OGRE_PREFIX_BUILD})
+      set(${fwk}_FRAMEWORK_PATH ${${fwk}_FRAMEWORK_PATH} ${i}/lib/macosx/Release ${i}/lib/macosx/Debug)
+    endforeach(i)
+
+    foreach(dir ${${fwk}_FRAMEWORK_PATH})
+      set(fwkpath ${dir}/${fwk}.framework)
+      if(EXISTS ${fwkpath})
+        set(${fwk}_FRAMEWORK_INCLUDES ${${fwk}_FRAMEWORK_INCLUDES}
+          ${fwkpath}/Headers ${fwkpath}/PrivateHeaders)
+        set(${fwk}_FRAMEWORK_PATH ${dir})
+        if (NOT ${fwk}_LIBRARY_FWK)
+          set(${fwk}_LIBRARY_FWK "-framework ${fwk}")
+        endif ()
+      endif(EXISTS ${fwkpath})
+    endforeach(dir)
+  endif(APPLE)
+endmacro(findpkg_framework)
+
 macro(create_search_paths PREFIX)
   foreach(dir ${${PREFIX}_PREFIX_PATH})
     set(${PREFIX}_INC_SEARCH_PATH ${${PREFIX}_INC_SEARCH_PATH}