--- configure.ac-orig	2013-04-13 14:57:35.811218424 +0300
+++ configure.ac	2013-04-13 14:57:42.304552135 +0300
@@ -46,7 +46,7 @@
 DRIVER_NAME=wizardpen
 AC_SUBST([DRIVER_NAME])
 
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 
 # Checks for programs.
 AC_DISABLE_STATIC