--- libaitcfg/configure.in	2008/09/30 14:45:09	1.1.2.2
+++ libaitcfg/configure.in	2008/09/30 14:58:53	1.1.2.4
@@ -28,13 +28,14 @@ AC_FUNC_MALLOC
 AC_FUNC_REALLOC
 AC_CHECK_FUNCS([bzero memmove memset strchr strspn])
 
+DEBUG=no
 AC_MSG_CHECKING(Debug Build)
 AC_ARG_ENABLE(debug,
 	[  --enable-debug          Build library with debug information and additional messages],
 	[ 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])
 				;;
 			*)
 				;;