diff --git a/src/auto/configure b/src/auto/configure
index b0fba30..f5195b2 100755
--- a/src/auto/configure
+++ b/src/auto/configure
@@ -12732,16 +12732,15 @@
 fi
 
 
-
-if test "$enable_multibyte" = "yes"; then
+if test "x$with_x" = "xyes"; then
   cflags_save=$CFLAGS
-  ldflags_save=$LDFLAGS
-  if test "x$x_includes" != "xNONE" ; then
-    CFLAGS="$CFLAGS -I$x_includes"
-    LDFLAGS="$X_LIBS $LDFLAGS -lX11"
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether X_LOCALE needed" >&5
+  libs_save=$LIBS
+  LIBS="$LIBS $X_LIBS $GUI_LIB_LOC $GUI_X_LIBS $X_PRE_LIBS $X_LIB $X_EXTRA_LIBS"
+  CFLAGS="$CFLAGS $X_CFLAGS"
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether X_LOCALE needed" >&5
 $as_echo_n "checking whether X_LOCALE needed... " >&6; }
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <X11/Xlocale.h>
 int
@@ -12774,7 +12773,7 @@
 if ac_fn_c_try_link "$LINENO"; then :
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
-		$as_echo "#define X_LOCALE 1" >>confdefs.h
+	      $as_echo "#define X_LOCALE 1" >>confdefs.h
 
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
@@ -12787,9 +12786,41 @@
 $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-  fi
+
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Xutf8SetWMProperties() can be used" >&5
+$as_echo_n "checking whether Xutf8SetWMProperties() can be used... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char Xutf8SetWMProperties ();
+int
+main ()
+{
+return Xutf8SetWMProperties ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+	      $as_echo "#define HAVE_XUTF8SETWMPROPERTIES 1" >>confdefs.h
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _xpg4_setrunelocale in -lxpg4" >&5
diff --git a/src/config.h.in b/src/config.h.in
index 7f16e62..b8168a5 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -446,3 +446,6 @@
 
 /* Define if we have AvailabilityMacros.h on Mac OS X */
 #undef HAVE_AVAILABILITYMACROS_H
+
+/* Define if Xutf8SetWMProperties() is in an X library. */
+#undef HAVE_XUTF8SETWMPROPERTIES
diff --git a/src/configure.in b/src/configure.in
index 62785e1..ff1f482 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -3730,21 +3730,24 @@
 dnl Check for multibyte locale functions
 dnl Find out if _Xsetlocale() is supported by libX11.
 dnl Check if X_LOCALE should be defined.
-
-if test "$enable_multibyte" = "yes"; then
+if test "x$with_x" = "xyes"; then
   cflags_save=$CFLAGS
-  ldflags_save=$LDFLAGS
-  if test "x$x_includes" != "xNONE" ; then
-    CFLAGS="$CFLAGS -I$x_includes"
-    LDFLAGS="$X_LIBS $LDFLAGS -lX11"
-    AC_MSG_CHECKING(whether X_LOCALE needed)
-    AC_TRY_COMPILE([#include <X11/Xlocale.h>],,
-	AC_TRY_LINK_FUNC([_Xsetlocale], [AC_MSG_RESULT(yes)
-		AC_DEFINE(X_LOCALE)], AC_MSG_RESULT(no)),
-	AC_MSG_RESULT(no))
-  fi
+  libs_save=$LIBS
+  LIBS="$LIBS $X_LIBS $GUI_LIB_LOC $GUI_X_LIBS $X_PRE_LIBS $X_LIB $X_EXTRA_LIBS"
+  CFLAGS="$CFLAGS $X_CFLAGS"
+
+  AC_MSG_CHECKING(whether X_LOCALE needed)
+  AC_TRY_COMPILE([#include <X11/Xlocale.h>],,
+      AC_TRY_LINK_FUNC([_Xsetlocale], [AC_MSG_RESULT(yes)
+	      AC_DEFINE(X_LOCALE)], AC_MSG_RESULT(no)),
+      AC_MSG_RESULT(no))
+
+  AC_MSG_CHECKING(whether Xutf8SetWMProperties() can be used)
+  AC_TRY_LINK_FUNC([Xutf8SetWMProperties], [AC_MSG_RESULT(yes)
+	      AC_DEFINE(HAVE_XUTF8SETWMPROPERTIES)], AC_MSG_RESULT(no))
+
   CFLAGS=$cflags_save
-  LDFLAGS=$ldflags_save
+  LIBS=$libs_save
 fi
 
 dnl Link with xpg4, it is said to make Korean locale working
diff --git a/src/os_unix.c b/src/os_unix.c
index b49afc3..6209605 100644
--- a/src/os_unix.c
+++ b/src/os_unix.c
@@ -1960,9 +1960,12 @@
     return retval;
 }
 
-/* Are Xutf8 functions available?  Avoid error from old compilers. */
+/* Xutf8 functions are not avaialble on older systems. Note that on some
+ * systems X_HAVE_UTF8_STRING may be defined in a header file but
+ * Xutf8SetWMProperties() is not in the X11 library.  Configure checks for
+ * that and defines HAVE_XUTF8SETWMPROPERTIES. */
 #if defined(X_HAVE_UTF8_STRING) && defined(FEAT_MBYTE)
-# if X_HAVE_UTF8_STRING
+# if X_HAVE_UTF8_STRING && HAVE_XUTF8SETWMPROPERTIES
 #  define USE_UTF8_STRING
 # endif
 #endif
diff --git a/src/version.c b/src/version.c
index 8908820..78c3baa 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    475,
+/**/
     474,
 /**/
     473,