MacOSX : ajout variable OTB_GLU_INCLUDE_PATH dans chemins et chemins INSTALL

otbIncludeDirectories.cmake

@@ -114,6 +114,11 @@ ELSE(OTB_USE_EXTERNAL_FLTK)
   	        ${OTB_BINARY_DIR}/Utilities/FLTK )
 ENDIF(OTB_USE_EXTERNAL_FLTK)
 
+#For GLU header file
+SET(OTB_INCLUDE_DIRS_BUILD_TREE_CXX ${OTB_INCLUDE_DIRS_BUILD_TREE_CXX}
+  		${OTB_GLU_INCLUDE_PATH} )
+
+
 
 SET(OTB_INCLUDE_DIRS_BUILD_TREE_CXX ${OTB_INCLUDE_DIRS_BUILD_TREE_CXX}
   		${GDAL_INCLUDE_DIRS} )
@@ -181,6 +186,10 @@ ELSE(OTB_USE_EXTERNAL_FLTK)
         SET(OTB_INCLUDE_DIRS_INSTALL_TREE ${OTB_INCLUDE_DIRS_INSTALL_TREE}
   		        ${OTB_INSTALL_INCLUDE_DIR}/Utilities/FLTK)
 ENDIF(OTB_USE_EXTERNAL_FLTK)
+#For GLU header file
+SET(OTB_INCLUDE_DIRS_INSTALL_TREE ${OTB_INCLUDE_DIRS_INSTALL_TREE}
+  		${OTB_GLU_INCLUDE_PATH} )
+
 
 IF(OTB_USE_EXTERNAL_ITK)
 	SET(OTB_INCLUDE_DIRS_INSTALL_TREE ${OTB_INCLUDE_DIRS_INSTALL_TREE}