diff -up ots-0.5.0/configure.in.automake-1_13 ots-0.5.0/configure.in
--- ots-0.5.0/configure.in.automake-1_13	2007-04-08 20:12:42.000000000 +0200
+++ ots-0.5.0/configure.in	2013-01-09 02:31:52.690211708 +0100
@@ -34,7 +34,7 @@ PACKAGE=ots
 
 dnl Specify a configuration file
 dnl Initialize automake stuff
-AM_CONFIG_HEADER(ots-config.h)
+AC_CONFIG_HEADERS(ots-config.h)
 AM_INIT_AUTOMAKE($PACKAGE, $OTS_VERSION)
 AM_MAINTAINER_MODE
 
