From 70ad1b30dfa9dad920029f8e0e63b3251c3195ca Mon Sep 17 00:00:00 2001
From: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Date: Thu, 18 Sep 2025 11:47:42 +0100
Subject: [PATCH] gh-138998: `expat/refresh.sh`: Fail if Step 3 is not
 completed (GH-139049)

---
 Modules/expat/refresh.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Modules/expat/refresh.sh b/Modules/expat/refresh.sh
index cc7ae1686de0..0ea0e85d0469 100755
--- a/Modules/expat/refresh.sh
+++ b/Modules/expat/refresh.sh
@@ -54,6 +54,13 @@ rm libexpat.tar.gz
 # Step 3: Add the namespacing include to expat_external.h
 sed -i 's/#  define Expat_External_INCLUDED 1/&\n\/* Namespace external symbols to allow multiple libexpat version to\n   co-exist. \*\/\n#include "pyexpatns.h"/' expat_external.h
 
+if ! grep -q '#include "pyexpatns\.h"' expat_external.h; then
+  echo "
+Error: namespacing include not found in expat_external.h;
+This may be due to source changes and will require updating this script" >&2
+  exit 1
+fi
+
 echo "
 Updated! next steps:
 - Verify all is okay:
-- 
2.47.3