--- libaitcfg/configure.in	2008/09/30 14:56:51	1.1.2.3
+++ libaitcfg/configure.in	2008/09/30 14:58:53	1.1.2.4
@@ -35,7 +35,7 @@ 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])
 				;;
 			*)
 				;;