Backport of:

------------------------------------------------------------
revno: 2627
committer: davi@mysql.com/endora.local
timestamp: Wed 2008-04-23 13:25:02 -0300
message:
Fix for a build failure on Windows due to ssize_t
not being declared.

include/config-win.h

@@ -145,10 +145,21 @@ typedef __int64 os_off_t;
 #ifdef _WIN64
 typedef UINT_PTR rf_SetTimer;
 #else
+typedef uint rf_SetTimer;
+#endif
+
 #ifndef HAVE_SIZE_T
-typedef unsigned int size_t;
+#ifndef _SIZE_T_DEFINED
+typedef SIZE_T size_t;
+#define _SIZE_T_DEFINED
+#endif
+#endif
+
+#ifndef HAVE_SSIZE_T
+#ifndef _SSIZE_T_DEFINED
+typedef SSIZE_T ssize_t;
+#define _SSIZE_T_DEFINED
 #endif
-typedef uint rf_SetTimer;
 #endif
 
 #define Socket_defined