--- ibus-1.5.11/configure.ac.org	2015-07-26 02:12:53.141514441 +0900
+++ ibus-1.5.11/configure.ac	2015-07-26 02:34:17.589225723 +0900
@@ -267,7 +267,14 @@
     enable_wayland="no (disabled, use --enable-wayland to enable)"
 fi
 
-enable_appindicator_engine_icon="no"
+# --enable_appindicator_engine_icon option.
+AC_ARG_ENABLE(appindicator_engine_icon,
+    AS_HELP_STRING([--enable-appindicator_engine_icon],
+                   [Build appindicator engine icon support]),
+    [enable_appindicator_engine_icon=$enableval],
+    [enable_appindicator_engine_icon=no]
+)
+
 if test x"$enable_appindicator" = x"yes"; then
     enable_appindicator="yes (enabled, use --disable-appindicator to disable)"