--- acpi-1.7/configure.ac~	2013-11-05 12:34:05.000000000 +0100
+++ acpi-1.7/configure.ac	2014-01-27 18:52:33.746877833 +0100
@@ -1,6 +1,6 @@
 AC_INIT([acpi], [1.7])
 AM_INIT_AUTOMAKE
-AM_CONFIG_HEADER([config.h])
+AC_CONFIG_HEADERS([config.h])
 AC_PROG_CC
 AC_HEADER_STDC
 AC_ARG_PROGRAM