From 06544bce9de3a0fb3246cb0a9e4f10e0be043ecf Mon Sep 17 00:00:00 2001
From: SoftFever <softfeverever@gmail.com>
Date: Sat, 3 Jan 2026 18:02:42 +0800
Subject: [PATCH] Update Doxygen workflow to set DOT_NUM_THREADS to 1 to
 prevent parallel processing issues

---
 .github/workflows/doxygen-docs.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/doxygen-docs.yml b/.github/workflows/doxygen-docs.yml
index ad48aab77d..61e47b4873 100644
--- a/.github/workflows/doxygen-docs.yml
+++ b/.github/workflows/doxygen-docs.yml
@@ -26,6 +26,8 @@ jobs:
 
       - name: Generate documentation
         run: |
+          # Override DOT_NUM_THREADS to avoid parallel dot race condition bug
+          sed -i 's/^DOT_NUM_THREADS.*/DOT_NUM_THREADS = 1/' .doxygen
           doxygen .doxygen
           # Verify documentation was generated
           if [ ! -f "internal_docs/index.html" ]; then