ssize_t type should be different for x86 and x64

Signed-off-by: Benn Snyder <[email protected]>

Author: armadillu

platform/windows/unistd.h

@@ -34,7 +34,11 @@
 // MSVC does not define this.
 #ifndef _SSIZE_T_DEFINED
 #define _SSIZE_T_DEFINED
-typedef long ssize_t;
+#ifdef _WIN64
+	typedef __int64 ssize_t;
+#else
+	typedef int ssize_t;
+#endif
 #endif // _SSIZE_T_DEFINED