From ad9eb0d01649d82b17b68fa66fac2ae0a31744db Mon Sep 17 00:00:00 2001
From: Baranov Victor <bar.victor.2002@gmail.com>
Date: Tue, 11 Nov 2025 01:36:25 +0300
Subject: [PATCH] Add default empty header filter regex to root .clang-tidy
 (#167386)

After https://github.com/llvm/llvm-project/pull/164165, we emit warnings
from non-system headers by default.
This change only preserves functionality of `clang-tidy` as it was
before the change.
---
 .clang-tidy | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.clang-tidy b/.clang-tidy
index 06bb0f18e9d2..2cda1b81de80 100644
--- a/.clang-tidy
+++ b/.clang-tidy
@@ -1,3 +1,4 @@
+HeaderFilterRegex: ''
 Checks: >
   -*,
   clang-diagnostic-*,