fix compile for eglibc

package/rdate/Makefile

@@ -5,7 +5,7 @@ include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		rdate
 PKG_VERSION:=		20070817
-PKG_RELEASE:=		2
+PKG_RELEASE:=		3
 PKG_MD5SUM:=		9a6489d7de4311678a3fab001bb503df
 PKG_DESCR:=		A small rdate and NTP client
 PKG_SECTION:=		ntp

package/rdate/patches/patch-rdate_c

@@ -0,0 +1,10 @@
+--- rdate.orig/rdate.c	2007-08-16 12:38:52.000000000 +0200
++++ rdate/rdate.c	2014-01-14 16:53:03.000000000 +0100
+@@ -45,6 +45,7 @@
+ #include <sys/socket.h>
+ #include <sys/time.h>
+ 
++#include <stdint.h>
+ #include <stdio.h>
+ #include <ctype.h>
+ #include <err.h>