--- screen-4.0.2/configure.in.orig	2004-02-27 09:55:54.000000000 +0100
+++ screen-4.0.2/configure.in	2004-02-27 10:07:21.000000000 +0100
@@ -1208,8 +1197,7 @@
 fi
 rm -f /tmp/conftest*
 
-AC_MSG_CHECKING(for vsprintf)
-AC_TRY_LINK(,[vsprintf(0,0,0);], AC_MSG_RESULT(yes);AC_DEFINE(USEVARARGS), AC_MSG_RESULT(no))
+AC_CHECK_FUNC(vsprintf, [AC_DEFINE(USEVARARGS)])
 
 AC_HEADER_DIRENT