From 2c75e769be0ae3383da5fbbc96d6c27d699b031f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Wed, 18 Nov 2020 14:28:38 +0530
Subject: [PATCH] Better error message for macOS ext_dev

---
 setup/installers.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/setup/installers.py b/setup/installers.py
index 0bbea71442..82731ecee8 100644
--- a/setup/installers.py
+++ b/setup/installers.py
@@ -230,6 +230,7 @@ class ExtDev(Command):
             path = '/cygdrive/c/Program Files/Calibre2/app/bin/{}.pyd'
             bin_dir = '/cygdrive/c/Program Files/Calibre2'
         elif which == 'macos':
+            raise SystemExit("This does not work on macOS because of Apple's stupid code-signing")
             host = 'ox'
             path = '/Applications/calibre.app/Contents/Frameworks/plugins/{}.so'
             bin_dir = '/Applications/calibre.app/Contents/MacOS'