From 9ade2c39ac79e8dea7ead0a168a8a62567f689d8 Mon Sep 17 00:00:00 2001
From: James Turk <dev@jamesturk.net>
Date: Sat, 18 Nov 2023 18:20:05 -0600
Subject: [PATCH] gh-112252: Fix error on unset OSNAME in venv/activate

---
 Lib/venv/scripts/common/activate | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/venv/scripts/common/activate b/Lib/venv/scripts/common/activate
index 458740a35b0d20..8398981ce53b9c 100644
--- a/Lib/venv/scripts/common/activate
+++ b/Lib/venv/scripts/common/activate
@@ -39,7 +39,7 @@ deactivate () {
 deactivate nondestructive
 
 # on Windows, a path can contain colons and backslashes and has to be converted:
-if [ "$OSTYPE" = "cygwin" ] || [ "$OSTYPE" = "msys" ] ; then
+if [ "${OSTYPE:-}" = "cygwin" ] || [ "${OSTYPE:-}" = "msys" ] ; then
     # transform D:\path\to\venv to /d/path/to/venv on MSYS
     # and to /cygdrive/d/path/to/venv on Cygwin
     export VIRTUAL_ENV=$(cygpath "__VENV_DIR__")