--- configure.ac.orig	2010-01-29 16:16:08 -0600
+++ configure.ac	2010-01-29 16:17:10 -0600
@@ -19,8 +19,11 @@
 
 AC_ARG_ENABLE(debug,
 	AC_HELP_STRING([--enable-debug],
-		[turn debugging on by default]),
-	AC_DEFINE(OPENPAM_DEBUG, 1, [Turn debugging on by default]))
+		[turn debugging on by default]))
+
+if test "x${enable_debug}" = "xyes"; then
+	AC_DEFINE(OPENPAM_DEBUG, 1, [Turn debugging on by default])
+fi
 
 AC_MSG_CHECKING([whether loading unversioned modules support is enabled])
 AC_ARG_ENABLE(unversioned-modules,