From aae90c3c016ee36b838d1ca5d522301d98731261 Mon Sep 17 00:00:00 2001
From: "Pietro F. Fontana" <cubanpit@users.noreply.github.com>
Date: Fri, 1 Nov 2024 15:42:08 +0100
Subject: [PATCH] Allow linking to shared zlib

If compiled as shared library zlib produces `zlib1.dll` and `zdll.lib`.
---
 setup.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/setup.py b/setup.py
index def341784..48863c397 100644
--- a/setup.py
+++ b/setup.py
@@ -690,6 +690,8 @@ class pil_build_ext(build_ext):
                     feature.set("zlib", "z")
                 elif sys.platform == "win32" and _find_library_file(self, "zlib"):
                     feature.set("zlib", "zlib")  # alternative name
+                elif sys.platform == "win32" and _find_library_file(self, "zdll"):
+                    feature.set("zlib", "zdll")  # different name if shared
 
         if feature.want("jpeg"):
             _dbg("Looking for jpeg")