From ab16af02057e0180298106140b028ee6b038f903 Mon Sep 17 00:00:00 2001
From: Joe Zhu <sha.joe.zhu@gmail.com>
Date: Sun, 22 Dec 2024 14:29:47 +0800
Subject: [PATCH] Update ccpp.yml

---
 .github/workflows/ccpp.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index bf1055f..1503a9c 100755
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -55,6 +55,11 @@ jobs:
           echo "CC=ccache clang-${{ matrix.version }}" >> $GITHUB_ENV
           echo "CXX=ccache clang++-${{ matrix.version }}" >> $GITHUB_ENV
         fi
+      if: matrix.name == 'ubuntu-gcc-9'
+      run: |
+         sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 90
+         sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.9 90
+         sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-4.9 90
 
     - name: Install dependencies (macOS)
       if: runner.os == 'macOS'