From d45ee9e4c9c6db17c8cc3247ed94ec178725a37a Mon Sep 17 00:00:00 2001
From: IChooseYou <IChooseYou@users.noreply.github.com>
Date: Sat, 21 Feb 2026 09:07:09 -0700
Subject: [PATCH] ci: install Qt-matching MinGW 13.1.0 to fix test segfaults

System MinGW on windows-latest is GCC 15.2 which has ABI mismatch
with Qt 6.8.1 (built with MinGW 13.1.0), causing all tests to
segfault. Install the matching toolchain via aqtinstall tools and
use it instead of the system compiler.
---
 .github/workflows/build.yml | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0e0a838..5da5521 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,31 +18,32 @@ jobs:
         with:
           submodules: recursive
 
-      - name: Install Qt6
+      - name: Install Qt6 and MinGW
         uses: jurplel/install-qt-action@v4
         with:
           version: '6.8.1'
           arch: 'win64_mingw'
+          tools: 'tools_mingw1310,qt.tools.win64_mingw1310'
           cache: true
-          aqtversion: '==3.1.21'
 
       - name: Configure
         shell: bash
         run: |
-          export PATH="/c/mingw64/bin:$PATH"
+          export PATH="$IQTA_TOOLS/mingw1310_64/bin:$PATH"
+          gcc --version
           cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DBUILD_UI_TESTS=OFF \
             -DCMAKE_C_COMPILER=gcc -DCMAKE_CXX_COMPILER=g++
 
       - name: Build
         shell: bash
         run: |
-          export PATH="/c/mingw64/bin:$PATH"
+          export PATH="$IQTA_TOOLS/mingw1310_64/bin:$PATH"
           cmake --build build
 
       - name: Test
         shell: bash
         run: |
-          export PATH="/c/mingw64/bin:$PATH"
+          export PATH="$IQTA_TOOLS/mingw1310_64/bin:$PATH"
           ctest --test-dir build --output-on-failure
 
       - name: Upload artifact
@@ -115,7 +116,6 @@ jobs:
         with:
           version: '6.8.1'
           cache: true
-          aqtversion: '==3.1.21'
 
       - name: Install dependencies
         run: |