From 70768b815f373dd98df64187656f90e247fc9136 Mon Sep 17 00:00:00 2001
From: Beq <beqjanus@gmail.com>
Date: Sun, 17 Aug 2025 21:38:24 +0100
Subject: [PATCH] Final permutation test. try gcc-13 and hope.

---
 .github/workflows/build_viewer.yml | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/build_viewer.yml b/.github/workflows/build_viewer.yml
index 50919c28ad..790502eb8a 100644
--- a/.github/workflows/build_viewer.yml
+++ b/.github/workflows/build_viewer.yml
@@ -125,18 +125,16 @@ jobs:
         with: 
           swap-storage: false
 
-      - name: Install GCC-14
+      - name: Install GCC-13
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install -y software-properties-common
           sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-          sudo apt-get update
-          sudo apt-get install -y gcc-14 g++-14
-          echo "CC=gcc-14"  >> $GITHUB_ENV
-          echo "CXX=g++-14" >> $GITHUB_ENV
-
-
+          sudo apt-get install -y gcc-13 g++-13
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 130 \
+            --slave /usr/bin/g++ g++ /usr/bin/g++-13
+          echo "CC=gcc-13"  >> $GITHUB_ENV
+          echo "CXX=g++-13" >> $GITHUB_ENV
       - name: Setup rclone and download the folder
         uses: beqjanus/setup-rclone@main
         with: