diff -up ./libs/hwdrivers/CMakeLists.txt.freenect ./libs/hwdrivers/CMakeLists.txt
--- ./libs/hwdrivers/CMakeLists.txt.freenect	2015-11-03 16:51:17.000000000 -0500
+++ ./libs/hwdrivers/CMakeLists.txt	2016-02-06 10:43:44.185261874 -0500
@@ -47,9 +47,9 @@ ENDIF(CMAKE_MRPT_HAS_INTERSENSE)
 IF(CMAKE_MRPT_HAS_FREENECT)
 	IF (CMAKE_MRPT_HAS_FREENECT_SYSTEM)
 		# No need to build if it's already built in the system:
-		IF (NOT "${OPENKINECT_FREENECT_INCLUDE_DIR}" STREQUAL "")
-			INCLUDE_DIRECTORIES("${OPENKINECT_FREENECT_INCLUDE_DIR}")
-		ENDIF (NOT "${OPENKINECT_FREENECT_INCLUDE_DIR}" STREQUAL "")
+		IF (NOT "${PKG_LIBFREENECT_INCLUDE_DIRS}" STREQUAL "")
+			INCLUDE_DIRECTORIES("${PKG_LIBFREENECT_INCLUDE_DIRS}")
+		ENDIF (NOT "${PKG_LIBFREENECT_INCLUDE_DIRS}" STREQUAL "")
 	ELSE (CMAKE_MRPT_HAS_FREENECT_SYSTEM)
 		# Embedded version:
 		INCLUDE_DIRECTORIES("${MRPT_LIBS_ROOT}/hwdrivers/src/libfreenect/")
@@ -135,7 +135,6 @@ ENDIF(CMAKE_MRPT_HAS_DUO3D)
 
 IF(CMAKE_MRPT_HAS_OPENNI2)
 	include_directories(${OPENNI2_INCLUDE_DIRS})
-	ADD_DIRECTORIES_AS_ISYSTEM(OPENNI2_INCLUDE_DIRS)
 ENDIF(CMAKE_MRPT_HAS_OPENNI2)
 
 IF(CMAKE_MRPT_HAS_SWISSRANGE)