--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/harfbuzz/src/check-header-guards.py	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+
+import sys, os, re
+
+srcdir = os.getenv ('srcdir', os.path.dirname (__file__))
+base_srcdir = os.getenv ('base_srcdir', srcdir)
+
+os.chdir (srcdir)
+
+def removeprefix(s):
+	abs_path = os.path.join(base_srcdir, s)
+	return os.path.relpath(abs_path, srcdir)
+
+
+HBHEADERS = [os.path.basename (x) for x in os.getenv ('HBHEADERS', '').split ()] or \
+	[x for x in os.listdir ('.') if x.startswith ('hb') and x.endswith ('.h')]
+HBSOURCES = [
+    removeprefix(x) for x in os.getenv ('HBSOURCES', '').split ()
+] or [
+    x for x in os.listdir ('.') if x.startswith ('hb') and x.endswith (('.cc', '.hh'))
+]
+
+
+stat = 0
+
+for x in HBHEADERS + HBSOURCES:
+	if not x.endswith ('h') or x == 'hb-gobject-structs.h': continue
+	tag = x.upper ().replace ('.', '_').replace ('-', '_').replace(os.path.sep, '_').replace('/', '_')
+	with open (x, 'r', encoding='utf-8') as f: content = f.read ()
+	if len (re.findall (tag + r'\b', content)) != 3:
+		print ('Ouch, header file %s does not have correct preprocessor guards. Expected: %s' % (x, tag))
+		stat = 1
+
+sys.exit (stat)