From a865e8d07193e5a0d9ccb040585bb88082b865ee Mon Sep 17 00:00:00 2001
From: "Bruno P. Kinoshita" <bruno.kinoshita@niwa.co.nz>
Date: Mon, 2 Dec 2019 16:05:38 +1300
Subject: [PATCH] bpo-35981: apply os.path.abspath only to basedir (for
 windows)

---
 Lib/shutil.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Lib/shutil.py b/Lib/shutil.py
index 8f609b312d3..4a55e41a665 100644
--- a/Lib/shutil.py
+++ b/Lib/shutil.py
@@ -1027,7 +1027,8 @@ def make_archive(base_name, format, root_dir=None, base_dir=None, verbose=0,
     if root_dir is not None:
         if logger is not None:
             logger.debug("changing into '%s'", root_dir)
-        base_name = os.path.abspath(base_name)
+        base_dir, base_file = os.path.split(base_name)
+        base_name = os.path.join(os.path.abspath(base_dir), base_file)
         if not dry_run:
             os.chdir(root_dir)