install g++ 10 on ubuntu

Author: neoxpert

.github/workflows/build.yml

@@ -48,6 +48,11 @@ jobs:
         run: brew install python-setuptools
       - if: ${{ !startsWith(matrix.os, 'windows') && !startsWith(matrix.os, 'macos') }}
         run: python3 -m pip install setuptools
+      - if: ${{ startsWith(matrix.os, 'ubuntu') }}
+        run: |
+          sudo apt update
+          sudo apt install gcc-10 g++-10 -y
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10 --slave /usr/bin/gcov gcov /usr/bin/gcov-10
       - run: npm install --ignore-scripts
       - run: npm run build-debug
       - run: npm test
@@ -101,6 +106,11 @@ jobs:
         run: brew install python-setuptools
       - if: ${{ !startsWith(matrix.os, 'windows') && !startsWith(matrix.os, 'macos') }}
         run: python3 -m pip install setuptools
+      - if: ${{ startsWith(matrix.os, 'ubuntu') }}
+        run: |
+          sudo apt update
+          sudo apt install gcc-10 g++-10 -y
+          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-10 100 --slave /usr/bin/g++ g++ /usr/bin/g++-10 --slave /usr/bin/gcov gcov /usr/bin/gcov-10
       - run: npm install --ignore-scripts
       - run: ${{ env.NODE_BUILD_CMD }} -u ${{ secrets.GITHUB_TOKEN }}
       - run: ${{ env.ELECTRON_BUILD_CMD }} -u ${{ secrets.GITHUB_TOKEN }}