From 2ad8c56e6c77f5eb04a9004f525b59ee717a8f3d Mon Sep 17 00:00:00 2001
From: Tim Peters <tim.peters@gmail.com>
Date: Thu, 16 Feb 2006 20:19:46 +0000
Subject: [PATCH] struct_pack():  Repair new assert-fail crash in debug-build
 test_struct on a box where plain "char" is signed.

---
 Modules/structmodule.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Modules/structmodule.c b/Modules/structmodule.c
index 2fa6e909c55..4713c0cf76b 100644
--- a/Modules/structmodule.c
+++ b/Modules/structmodule.c
@@ -1134,7 +1134,7 @@ struct_pack(PyObject *self, PyObject *args)
 				if (n > 255)
 					n = 255;
 				/* store the length byte */
-				*res++ = Py_SAFE_DOWNCAST(n, Py_ssize_t, char);
+				*res++ = Py_SAFE_DOWNCAST(n, Py_ssize_t, unsigned char);
 				res += num;
 				break;
 			}