From 02cb02ccfb3736e9bc95df9e7a774f4799cf5f9f Mon Sep 17 00:00:00 2001
From: Adam Turner <9087854+aa-turner@users.noreply.github.com>
Date: Tue, 22 Aug 2023 01:14:18 +0100
Subject: [PATCH] Fix invocation of ``python -m sphinx build``

---
 sphinx/cmd/build.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sphinx/cmd/build.py b/sphinx/cmd/build.py
index 40ab40b80..3ee0ceb08 100644
--- a/sphinx/cmd/build.py
+++ b/sphinx/cmd/build.py
@@ -329,12 +329,14 @@ def main(argv: Sequence[str] = (), /) -> int:
     if not argv:
         argv = sys.argv[1:]
 
+    # Allow calling as 'python -m sphinx build …'
+    if argv[:1] == ['build']:
+        argv = argv[1:]
+
     if argv[:1] == ['--bug-report']:
         return _bug_report_info()
     if argv[:1] == ['-M']:
         return make_main(argv)
-    elif argv[:1] == ['build']:
-        return build_main(argv[1:])
     else:
         return build_main(argv)