add format string define

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4458 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/include/switch_apr.h

@@ -76,6 +76,7 @@ SWITCH_BEGIN_EXTERN_C
  * @{
  */	
 
+#define SWITCH_SIZE_T_FMT APR_SIZE_T_FMT
 typedef apr_size_t swtich_size_t;
 typedef apr_int16_t switch_int16_t;