diff --git a/oldXMenu/ChangeLog b/oldXMenu/ChangeLog
index f3736cdacfa..74686f64972 100644
--- a/oldXMenu/ChangeLog
+++ b/oldXMenu/ChangeLog
@@ -1,5 +1,7 @@
 2014-06-15  Glenn Morris  <rgm@gnu.org>
 
+	* Makefile.in (CPPFLAGS): Explicitly set via configure.
+
 	* Makefile.in (mostlyclean, clean, distclean, maintainer-clean, tags):
 	Declare as PHONY.
 	(boostrap-clean): New.
diff --git a/oldXMenu/Makefile.in b/oldXMenu/Makefile.in
index 28fbf1eb366..91b313ac627 100644
--- a/oldXMenu/Makefile.in
+++ b/oldXMenu/Makefile.in
@@ -56,6 +56,8 @@ WERROR_CFLAGS = @WERROR_CFLAGS@
 EXTRA=insque.o
 CC=@CC@
 CFLAGS=@CFLAGS@
+CPPFLAGS = @CPPFLAGS@
+
 TAGS = etags
 RM = rm -f
 RANLIB = @RANLIB@