- mkstemp(3) support

--- configure.in.orig	Tue Mar  2 00:06:18 2004
+++ configure.in	Mon Jan 27 21:44:48 2014
@@ -507,7 +507,7 @@ AC_HEADER_STDC
 AC_HEADER_TIME
 AC_CHECK_HEADERS(fcntl.h unistd.h memory.h malloc.h errno.h direct.h)
 AC_CHECK_HEADERS(io.h sys/time.h)
-AC_CHECK_FUNCS(getcwd popen gettimeofday isatty)
+AC_CHECK_FUNCS(getcwd popen gettimeofday isatty mkstemp)
 
 AC_CHECK_FUNC(tempnam,,AC_DEFINE(tempnam,_FP_tempnam))
 
