From af3de081542f66dfb1482dcf2a654b7e1668783c Mon Sep 17 00:00:00 2001
From: Richard Si <63936253+ichard26@users.noreply.github.com>
Date: Sun, 25 Sep 2022 20:55:52 -0400
Subject: [PATCH] Always call freeze_support() if sys.frozen is True (#3275)

---
 CHANGES.md            | 3 +++
 src/black/__init__.py | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGES.md b/CHANGES.md
index a775c76..6fb0990 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -31,6 +31,9 @@
 
 <!-- Changes to how Black is packaged, such as dependency requirements -->
 
+- Executables made with PyInstaller will no longer crash when formatting several files
+  at once on macOS. Native x86-64 executables for macOS are available once again.
+  (#3275)
 - Hatchling is now used as the build backend. This will not have any effect for users
   who install Black with its wheels from PyPI. (#3233)
 - Faster compiled wheels are now available for CPython 3.11 (#3276)
diff --git a/src/black/__init__.py b/src/black/__init__.py
index ded4a73..5b8c974 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -1375,7 +1375,9 @@ def patch_click() -> None:
 
 
 def patched_main() -> None:
-    if sys.platform == "win32" and getattr(sys, "frozen", False):
+    # PyInstaller patches multiprocessing to need freeze_support() even in non-Windows
+    # environments so just assume we always need to call it if frozen.
+    if getattr(sys, "frozen", False):
         from multiprocessing import freeze_support
 
         freeze_support()
-- 
2.39.5