$OpenBSD: patch-configure_ac,v 1.1 2014/07/11 10:37:55 zhuk Exp $
--- configure.ac.orig	Tue May 27 12:30:02 2014
+++ configure.ac	Tue May 27 12:30:17 2014
@@ -1237,6 +1237,7 @@ dnl **************************
 dnl * Build the output files *
 dnl **************************
 
+AC_SUBST(LIBxapian_VERSION)
 AC_CONFIG_FILES([
  Makefile
  tests/Makefile
