diff -ru SDL2-2.0.8-orig/CMakeLists.txt SDL2-2.0.8/CMakeLists.txt
--- SDL2-2.0.8-orig/CMakeLists.txt      2018-07-07 20:41:42.665096707 +0800
+++ SDL2-2.0.8/CMakeLists.txt   2018-07-07 21:39:20.403123001 +0800
@@ -1041,6 +1041,7 @@
         set(HAVE_IBUS_IBUS_H TRUE)
         include_directories(${IBUS_INCLUDE_DIRS})
         list(APPEND EXTRA_LIBS ${IBUS_LIBRARIES})
+        add_definitions(-DSDL_USE_IME)
       endif()
     endif()