Fixed a few warnings in a configure test.

Rev: src/configure.in:1.1089

src/configure.in

-AC_REVISION("$Id: configure.in,v 1.1088 2009/10/19 21:03:33 marcus Exp $")
+AC_REVISION("$Id: configure.in,v 1.1089 2009/11/28 13:16:41 mast Exp $")
 AC_INIT(interpret.c)
 AC_CONFIG_HEADER(machine.h)
 
@@ -2451,7 +2451,7 @@ if test "x$PIKE_PATH_TRANSLATE" = "x"; then
     # MinGW system.
     cat <<\EOF
 #!/bin/sh
-# Automatically generated by $Id: configure.in,v 1.1088 2009/10/19 21:03:33 marcus Exp $.
+# Automatically generated by $Id: configure.in,v 1.1089 2009/11/28 13:16:41 mast Exp $.
 # MinGW-version. Do NOT edit.
 posix_name="`cat`"
 posix_prefix="/"
@@ -2489,7 +2489,7 @@ EOF
     # Native POSIX system.
   cat <<\EOF
 #!/bin/sh
-# Automatically generated by $Id: configure.in,v 1.1088 2009/10/19 21:03:33 marcus Exp $.
+# Automatically generated by $Id: configure.in,v 1.1089 2009/11/28 13:16:41 mast Exp $.
 # POSIX-version. Do NOT edit.
 cat
 EOF
@@ -2498,7 +2498,7 @@ else
   # rntcl-style
   cat <<\EOF
 #!/bin/sh
-# Automatically generated by $Id: configure.in,v 1.1088 2009/10/19 21:03:33 marcus Exp $.
+# Automatically generated by $Id: configure.in,v 1.1089 2009/11/28 13:16:41 mast Exp $.
 # RNTCL-version. Do NOT edit.
 sed -e "$PIKE_PATH_TRANSLATE"
 EOF
@@ -6981,6 +6981,8 @@ if test "x$enable_binary" = "xno"; then
 else
   AC_TRY_RUN([
 #include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <errno.h>