Author: <hesso@pool.math.tu-berlin.de>
Description: Enhance the vsprintf() test to also succeed on Alpha.
Cf. #213842.
Index: screen/configure.in
===================================================================
--- screen.orig/configure.in	2012-03-20 22:34:28.000000000 +0100
+++ screen/configure.in	2012-03-20 22:34:53.000000000 +0100
@@ -1212,7 +1212,7 @@
 AC_SYS_LONG_FILE_NAMES
 
 AC_MSG_CHECKING(for vsprintf)
-AC_TRY_LINK(,[vsprintf(0,0,0);], AC_MSG_RESULT(yes);AC_DEFINE(USEVARARGS), AC_MSG_RESULT(no))
+AC_TRY_LINK([#include <stdarg.h>],[va_list valist; vsprintf(0,0,valist);], AC_MSG_RESULT(yes);AC_DEFINE(USEVARARGS), AC_MSG_RESULT(no))
 
 AC_HEADER_DIRENT