--- bnlib-1.1.4/configure.in.orig	1999-04-22 19:51:58.000000000 +0200
+++ bnlib-1.1.4/configure.in	2013-01-31 15:59:12.546192377 +0100
@@ -304,6 +304,9 @@
 fi
 # ^^ End of non-ANSI header brokenness tests (second part)
 
+ifdef([AC_OUTPUT_SUBDIRS],[],
+	[AC_DEFUN([AC_OUTPUT_SUBDIRS],[subdirs=$1; _AC_OUTPUT_SUBDIRS])])
+
 AC_OUTPUT_SUBDIRS(test)
 
 # The big bang!  Produce the output files.  This is config.cache, and