diff -Naur a52dec-0.7.4/configure.in a52dec-0.7.4-haiku/configure.in
--- a52dec-0.7.4/configure.in	2002-07-27 22:50:20.043515904 -0500
+++ a52dec-0.7.4-haiku/configure.in	2013-11-26 16:13:12.837550080 -0600
@@ -6,7 +6,7 @@
 AC_CONFIG_FILES([Makefile autotools/Makefile include/Makefile test/Makefile
     doc/Makefile src/Makefile liba52/Makefile libao/Makefile vc++/Makefile])
 AM_INIT_AUTOMAKE([a52dec],[0.7.4])
-AM_CONFIG_HEADER(include/config.h)
+AC_CONFIG_HEADERS(include/config.h)
 AM_MAINTAINER_MODE
 AC_CANONICAL_HOST
 
