Patch to embed hotkeys property in component XML.
Index: ibus-hangul-1.3.1/configure.ac
===================================================================
--- ibus-hangul-1.3.1.orig/configure.ac
+++ ibus-hangul-1.3.1/configure.ac
@@ -75,6 +75,9 @@ AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GET
 AM_GNU_GETTEXT([external])
 AM_GNU_GETTEXT_VERSION([0.17])
 
+# hotkeys and symbol properties in component xml
+IBUS_WITH_HOTKEYS([Control+space,Hangul])
+
 
 # OUTPUT files
 AC_CONFIG_FILES([ po/Makefile.in
Index: ibus-hangul-1.3.1/m4/ibus.m4
===================================================================
--- /dev/null
+++ ibus-hangul-1.3.1/m4/ibus.m4
@@ -0,0 +1,52 @@
+# IBUS_WITH_HOTKEYS([DEFAULT])
+AC_DEFUN([IBUS_WITH_HOTKEYS], [
+  IBUS_HOTKEYS_DEFAULT=m4_default([$1], [Control+space,Zenkaku_Hankaku])
+  AC_ARG_WITH(hotkeys,
+    [AC_HELP_STRING([--with-hotkeys=HOTKEYS],
+    [Use hotkeys for ibus bridge mode. (available value: yes/no/keys)])],
+    [with_hotkeys="$withval"],
+    [with_hotkeys="no"])
+  if test x$with_hotkeys = xno; then
+    IBUS_HOTKEYS_XML="<!-- <hotkeys>${IBUS_HOTKEYS_DEFAULT}</hotkeys> -->"
+  elif test x$with_hotkeys = xyes -o x$with_hotkeys = x; then
+    IBUS_HOTKEYS="$IBUS_HOTKEYS_DEFAULT"
+    IBUS_HOTKEYS_XML="<hotkeys>${IBUS_HOTKEYS}</hotkeys>"
+  else
+    IBUS_HOTKEYS="$with_hotkeys"
+    IBUS_HOTKEYS_XML="<hotkeys>${IBUS_HOTKEYS}</hotkeys>"
+  fi
+  if test x$IBUS_HOTKEYS != x; then
+    AC_DEFINE_UNQUOTED(IBUS_IBUS_HOTKEYS, ["$IBUS_HOTKEYS"],
+      [IME specific hotkeys for IBus])
+    AC_SUBST(IBUS_HOTKEYS)
+  fi
+  AC_SUBST(IBUS_HOTKEYS_XML)
+])
+
+# IBUS_SET_SYMBOL(SYMBOL)
+AC_DEFUN([IBUS_SET_SYMBOL], [
+  IBUS_SYMBOL="$1"
+  if test x$PYTHON = x; then
+    AM_PATH_PYTHON([2.5])
+  fi
+  AC_MSG_CHECKING([if ibus supports icon symbol])
+  $PYTHON <<_IBUS_SYMBOL_TEST
+import ibus
+engine = ibus.EngineDesc('test')
+exit(not hasattr(engine, 'symbol'))
+_IBUS_SYMBOL_TEST
+  if test $? -eq 0; then
+    IBUS_SYMBOL_XML="<symbol>${IBUS_SYMBOL}</symbol>"
+    AC_MSG_RESULT([yes])
+  else
+    IBUS_SYMBOL_XML="<!-- <symbol>${IBUS_SYMBOL}</symbol> -->"
+    IBUS_SYMBOL=
+    AC_MSG_RESULT([no])
+  fi
+  if test x$IBUS_SYMBOL != x; then
+    AC_DEFINE_UNQUOTED([IBUS_SYMBOL], ["$IBUS_SYMBOL"],
+      [Icon symbol string for IBus])
+    AC_SUBST(IBUS_SYMBOL)
+  fi
+  AC_SUBST(IBUS_SYMBOL_XML)
+])
--- ibus-hangul-1.4.1/src/hangul.xml.in.in.orig	2012-09-15 11:32:11.785250460 +0200
+++ ibus-hangul-1.4.1/src/hangul.xml.in.in	2012-09-15 11:43:35.728569536 +0200
@@ -22,6 +22,7 @@
 			<description>Korean Input Method</description>
 			<rank>99</rank>
 			<symbol>&#xD55C;</symbol>
+			@IBUS_HOTKEYS_XML@
 		</engine>
 	</engines>