diff --git a/config.h.in b/config.h.in
index 7c17b83..18e2c84 100644
--- a/config.h.in
+++ b/config.h.in
@@ -142,6 +142,12 @@
 /* Define if you want to use the GNU readline library */
 #undef WITH_READLINE
 
+/* The number of bytes in a int.  */
+#undef SIZEOF_INT
+
+/* The number of bytes in a long.  */
+#undef SIZEOF_LONG
+
 /* Define if you have the chown function.  */
 #undef HAVE_CHOWN
 
@@ -292,6 +298,9 @@
 /* Define if you have the <sys/dir.h> header file.  */
 #undef HAVE_SYS_DIR_H
 
+/* Define if you have the <sys/file.h> header file.  */
+#undef HAVE_SYS_FILE_H
+
 /* Define if you have the <sys/lock.h> header file.  */
 #undef HAVE_SYS_LOCK_H