--- libaitcfg/configure.in	2008/09/30 14:56:51	1.1.2.3
+++ libaitcfg/configure.in	2008/09/30 20:00:26	1.1.2.5
@@ -1,3 +1,7 @@
+#
+# $Author: misho $
+# $Id: configure.in,v 1.1.2.5 2008/09/30 20:00:26 misho Exp $
+#
 AC_INIT(libaitcfg, 3.0, misho@openbsd-bg.org)
 AC_CONFIG_SRCDIR([src/aitcfg.c])
 AC_CONFIG_HEADERS([inc/config.h])
@@ -35,7 +39,7 @@ AC_ARG_ENABLE(debug,
 	[ DEBUG=$enableval
 		case "$enableval" in
 			yes)
-				AC_DEFINE(_DEBUG,, [Build libraries with debug information and additional messages])
+				AC_DEFINE(__DEBUG,, [Build libraries with debug information and additional messages])
 				;;
 			*)
 				;;