Fix antl3rc include path when building with CMake.

CMakeLists.txt

@@ -83,7 +83,7 @@ find_package(Threads)
 find_package(Antlr3 REQUIRED)
 if(ANTLR3C_FOUND)
 	cmake_push_check_state(RESET)
-	set(CMAKE_REQUIRED_INCLUDES ${ANTLR3C_INCLUDE_DIR})
+	set(CMAKE_REQUIRED_INCLUDES ${ANTLR3C_INCLUDE_DIRS})
 	set(CMAKE_REQUIRED_LIBRARIES ${ANTLR3C_LIBRARIES})
 	check_symbol_exists("antlr3StringStreamNew" "antlr3.h" HAVE_ANTLR_STRING_STREAM_NEW)
 	cmake_pop_check_state()

src/CMakeLists.txt

@@ -20,7 +20,7 @@
 #
 ############################################################################
 
-set(INCLUDES ${ANTLR3C_INCLUDE_DIR})
+set(INCLUDES ${ANTLR3C_INCLUDE_DIRS})
 set(LIBS ${ANTLR3C_LIBRARIES})
 
 if(${Threads_FOUND})