--- ./configure.ac.orig	2013-01-01 08:01:59.674695630 +0000
+++ ./configure.ac	2013-01-01 08:02:09.388115907 +0000
@@ -11,7 +11,7 @@
 
 # Checks for header files.
 AC_HEADER_STDC
-AM_CONFIG_HEADER(src/config.h)
+AC_CONFIG_HEADER(src/config.h)
 AC_CHECK_HEADERS([stdlib.h string.h unistd.h signal.h])
 
 # Checks for typedefs, structures, and compiler characteristics.