bump serial number

diff --git a/m4/mbswidth.m4 b/m4/mbswidth.m4
index f49e571eb8dee473290187d3f0479b0ce0a64d33..085c8849c8c28634d636d6a982c757cc550a70ea 100644 (file)
--- a/m4/mbswidth.m4
+++ b/m4/mbswidth.m4
@@ -1,4 +1,4 @@
-#serial 2
+#serial 4
 
 dnl autoconf tests required for use of mbswidth.c
 dnl From Bruno Haible.