From 7009f04967fc5b6416bae88a6c1d808fe059b84f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 15:24:13 +0200
Subject: [PATCH 01/16] CI: setup GH-Acitons for windows builds

---
 .github/workflows/main.yml | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 .github/workflows/main.yml

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
new file mode 100644
index 00000000..38f7db9d
--- /dev/null
+++ b/.github/workflows/main.yml
@@ -0,0 +1,38 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - "master"
+    tags:
+      - "*"
+  pull_request:
+    branches:
+      - "master"
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+  build_win:
+    name: Build on Windows
+    runs-on: windows-2019
+    strategy:
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: '0'
+
+      - name: Setup msbuild.exe
+        uses: microsoft/setup-msbuild@v1.0.2
+        with:
+          vs-version: '[15.0,16.0)'
+
+      - name: Build OGS5
+        run: |
+          cmake -B build -S . -DCMAKE_BUILD_TYPE=Release
+          cmake --build build/ --config Release -j
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./build/bin/*

From 8c3563b4f31fca9f6eeaf456b3664eec7471ca4d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 15:25:52 +0200
Subject: [PATCH 02/16] CI: bugfix from copy-pasta

---
 .github/workflows/main.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 38f7db9d..f3a24817 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -12,6 +12,7 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
+jobs:
   build_win:
     name: Build on Windows
     runs-on: windows-2019

From da9c9d8725d1876c7ab0cd0f9ffa31878c7e7590 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 15:35:35 +0200
Subject: [PATCH 03/16] CI: use windows-2016 to get VS2017

---
 .github/workflows/main.yml | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f3a24817..8db6a2f6 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,7 +15,7 @@ on:
 jobs:
   build_win:
     name: Build on Windows
-    runs-on: windows-2019
+    runs-on: windows-2016
     strategy:
       fail-fast: false
 
@@ -26,8 +26,6 @@ jobs:
 
       - name: Setup msbuild.exe
         uses: microsoft/setup-msbuild@v1.0.2
-        with:
-          vs-version: '[15.0,16.0)'
 
       - name: Build OGS5
         run: |

From 9d7d7e4260bed45c80e461da4398a2d02d34214e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:05:38 +0200
Subject: [PATCH 04/16] CI: add builds for win2019, linux and macOS

---
 .github/workflows/main.yml | 53 ++++++++++++++++++++++++++++++++++++--
 1 file changed, 51 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8db6a2f6..98ece3af 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -15,19 +15,22 @@ on:
 jobs:
   build_win:
     name: Build on Windows
-    runs-on: windows-2016
     strategy:
+      matrix:
+        os: [windows-2016, windows-2019]
       fail-fast: false
+    runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v2
         with:
           fetch-depth: '0'
+          submodules: recursive
 
       - name: Setup msbuild.exe
         uses: microsoft/setup-msbuild@v1.0.2
 
-      - name: Build OGS5
+      - name: Build OGS5-FEM
         run: |
           cmake -B build -S . -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
@@ -35,3 +38,49 @@ jobs:
       - uses: actions/upload-artifact@v2
         with:
           path: ./build/bin/*
+
+  build_linux:
+    name: Build on Linux
+    strategy:
+      matrix:
+        os: [ubuntu-18.04, ubuntu-20.04]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: '0'
+          submodules: recursive
+
+      - name: Build OGS5-FEM
+        run: |
+          cmake -B build -S . -DOGS_USE_CVODE=ON -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+          cmake --build build/ --config Release -j
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./build/bin/*
+
+  build_macOS:
+    name: Build on macOS
+    strategy:
+      matrix:
+        os: [macos-10.15]
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: '0'
+          submodules: recursive
+
+      - name: Build OGS5-FEM
+        run: |
+          cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+          cmake --build build/ --config Release -j
+
+      - uses: actions/upload-artifact@v2
+        with:
+          path: ./build/bin/*

From 5feb35d856a03759a4e4bd681cc4ce86e6ba76cb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:19:32 +0200
Subject: [PATCH 05/16] CI: fix broken macOS build by specifying C++11

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 98ece3af..a2999019 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -78,7 +78,7 @@ jobs:
 
       - name: Build OGS5-FEM
         run: |
-          cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++11 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From 37b2aad8857739f23a20a2a44a89fb7f24d22cde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:32:07 +0200
Subject: [PATCH 06/16] CI: fix broken macOS build by specifying C++0x

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a2999019..c8ab4ed0 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -78,7 +78,7 @@ jobs:
 
       - name: Build OGS5-FEM
         run: |
-          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++11 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++0x -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From ce01007e62442e274f5eb74c219970879e12b72b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:37:12 +0200
Subject: [PATCH 07/16] CI: fix broken macOS build by specifying C++14

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c8ab4ed0..9901498e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -78,7 +78,7 @@ jobs:
 
       - name: Build OGS5-FEM
         run: |
-          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++0x -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++14 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From 4dfaeaca67c77c51e3cb53e3390ad788240f02e0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:43:42 +0200
Subject: [PATCH 08/16] CI: fix broken macOS build by using gcc instead of
 clang

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9901498e..4396b00c 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -78,7 +78,7 @@ jobs:
 
       - name: Build OGS5-FEM
         run: |
-          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++14 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          CC=gcc-9 cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From 5ccabf10a2aa232c90f2e61ba4e298294f1dbe68 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:49:20 +0200
Subject: [PATCH 09/16] CI: fix broken macOS build by specifying C++11 with gcc

---
 .github/workflows/main.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4396b00c..ad728be8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -77,8 +77,10 @@ jobs:
           submodules: recursive
 
       - name: Build OGS5-FEM
+        env:
+          CC: gcc-9
         run: |
-          CC=gcc-9 cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++11 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From 650b2f38bee1a08a1caedefcbb26c987b303ab64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 16:56:31 +0200
Subject: [PATCH 10/16] CI: fix broken macOS build by using g++ instead of
 clang

---
 .github/workflows/main.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ad728be8..f67a51f7 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -79,8 +79,9 @@ jobs:
       - name: Build OGS5-FEM
         env:
           CC: gcc-9
+          CXX: g++-9
         run: |
-          cmake -B build -S . -DCMAKE_CXX_FLAGS=-std=c++11 -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j
 
       - uses: actions/upload-artifact@v2

From 4137b7c3b8dac4e63461849854e00dbd8d9edcfe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 17:16:18 +0200
Subject: [PATCH 11/16] CI: separate artifacts for all platforms

---
 .github/workflows/main.yml | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f67a51f7..96d9ca1b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -37,7 +37,8 @@ jobs:
 
       - uses: actions/upload-artifact@v2
         with:
-          path: ./build/bin/*
+          name: ${{ matrix.os }}
+          path: ./build/bin/
 
   build_linux:
     name: Build on Linux
@@ -60,7 +61,8 @@ jobs:
 
       - uses: actions/upload-artifact@v2
         with:
-          path: ./build/bin/*
+          name: ${{ matrix.os }}
+          path: ./build/bin/
 
   build_macOS:
     name: Build on macOS
@@ -86,4 +88,5 @@ jobs:
 
       - uses: actions/upload-artifact@v2
         with:
-          path: ./build/bin/*
+          name: ${{ matrix.os }}
+          path: ./build/bin/

From 400b67131227d989c7edf847c56b051bd565272c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 21 Jun 2021 17:39:37 +0200
Subject: [PATCH 12/16] CI: use package target for artifacts

---
 .github/workflows/main.yml | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 96d9ca1b..64d60d7e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -33,12 +33,12 @@ jobs:
       - name: Build OGS5-FEM
         run: |
           cmake -B build -S . -DCMAKE_BUILD_TYPE=Release
-          cmake --build build/ --config Release -j
+          cmake --build build/ --config Release -j --target package
 
       - uses: actions/upload-artifact@v2
         with:
           name: ${{ matrix.os }}
-          path: ./build/bin/
+          path: ./build/ogs-*.zip
 
   build_linux:
     name: Build on Linux
@@ -56,13 +56,13 @@ jobs:
 
       - name: Build OGS5-FEM
         run: |
-          cmake -B build -S . -DOGS_USE_CVODE=ON -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
-          cmake --build build/ --config Release -j
+          cmake -B build -S . -DOGS_CPU_ARCHITECTURE=generic -DOGS_USE_CVODE=ON -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
+          cmake --build build/ --config Release -j --target package
 
       - uses: actions/upload-artifact@v2
         with:
           name: ${{ matrix.os }}
-          path: ./build/bin/
+          path: ./build/ogs-*.tar.gz
 
   build_macOS:
     name: Build on macOS
@@ -84,9 +84,9 @@ jobs:
           CXX: g++-9
         run: |
           cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
-          cmake --build build/ --config Release -j
+          cmake --build build/ --config Release -j --target package
 
       - uses: actions/upload-artifact@v2
         with:
           name: ${{ matrix.os }}
-          path: ./build/bin/
+          path: ./build/ogs-*.tar.gz

From fc85fd030d8a95587c54355a2c18917917af82d7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 9 May 2022 11:09:56 +0200
Subject: [PATCH 13/16] CI: check more OS, use gcc-10

---
 .github/workflows/main.yml | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 64d60d7e..560fffce 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
     name: Build on Windows
     strategy:
       matrix:
-        os: [windows-2016, windows-2019]
+        os: [windows-2016, windows-2019, windows-2022]
       fail-fast: false
     runs-on: ${{ matrix.os }}
 
@@ -28,7 +28,7 @@ jobs:
           submodules: recursive
 
       - name: Setup msbuild.exe
-        uses: microsoft/setup-msbuild@v1.0.2
+        uses: microsoft/setup-msbuild@v1.1
 
       - name: Build OGS5-FEM
         run: |
@@ -55,6 +55,9 @@ jobs:
           submodules: recursive
 
       - name: Build OGS5-FEM
+        env:
+          CC: gcc-10
+          CXX: g++-10
         run: |
           cmake -B build -S . -DOGS_CPU_ARCHITECTURE=generic -DOGS_USE_CVODE=ON -DOGS_NO_EXTERNAL_LIBS=ON -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j --target package
@@ -68,7 +71,7 @@ jobs:
     name: Build on macOS
     strategy:
       matrix:
-        os: [macos-10.15]
+        os: [macos-10.15, macos-11, macos-12]
       fail-fast: false
     runs-on: ${{ matrix.os }}
 
@@ -80,8 +83,8 @@ jobs:
 
       - name: Build OGS5-FEM
         env:
-          CC: gcc-9
-          CXX: g++-9
+          CC: gcc-10
+          CXX: g++-10
         run: |
           cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j --target package

From e78612d190dadbde16e9a739881772c6fd293718 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 9 May 2022 11:14:01 +0200
Subject: [PATCH 14/16] CI: remove win2016; use gcc-11 on MacOS

---
 .github/workflows/main.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 560fffce..4d7c0640 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -17,7 +17,7 @@ jobs:
     name: Build on Windows
     strategy:
       matrix:
-        os: [windows-2016, windows-2019, windows-2022]
+        os: [windows-2019, windows-2022]
       fail-fast: false
     runs-on: ${{ matrix.os }}
 
@@ -83,8 +83,8 @@ jobs:
 
       - name: Build OGS5-FEM
         env:
-          CC: gcc-10
-          CXX: g++-10
+          CC: gcc-11
+          CXX: g++-11
         run: |
           cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j --target package

From 7d9629f336510d61909f444e43c0ee7ab9c009b3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 9 May 2022 11:22:48 +0200
Subject: [PATCH 15/16] CI: use gcc-10 for MacOS<12

---
 .github/workflows/main.yml | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4d7c0640..979b213f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -71,9 +71,12 @@ jobs:
     name: Build on macOS
     strategy:
       matrix:
-        os: [macos-10.15, macos-11, macos-12]
+        cfg:
+          - { os: macos-10.15, gcc: 10 }
+          - { os: macos-11, gcc: 10 }
+          - { os: macos-12, gcc: 11 }
       fail-fast: false
-    runs-on: ${{ matrix.os }}
+    runs-on: ${{ matrix.cfg.os }}
 
     steps:
       - uses: actions/checkout@v2
@@ -83,13 +86,13 @@ jobs:
 
       - name: Build OGS5-FEM
         env:
-          CC: gcc-11
-          CXX: g++-11
+          CC: gcc-${{ matrix.cfg.gcc }}
+          CXX: g++-${{ matrix.cfg.gcc }}
         run: |
           cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
           cmake --build build/ --config Release -j --target package
 
       - uses: actions/upload-artifact@v2
         with:
-          name: ${{ matrix.os }}
+          name: ${{ matrix.cfg.os }}
           path: ./build/ogs-*.tar.gz

From 7174a10dd5895ec1a030a2b94b27b6c8ac91d8c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sebastian=20M=C3=BCller?= <mueller.seb@posteo.de>
Date: Mon, 9 May 2022 11:41:09 +0200
Subject: [PATCH 16/16] CI: MacOS stick to -std=c++14 with gcc-11

---
 .github/workflows/main.yml | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 979b213f..f9a76077 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -71,12 +71,9 @@ jobs:
     name: Build on macOS
     strategy:
       matrix:
-        cfg:
-          - { os: macos-10.15, gcc: 10 }
-          - { os: macos-11, gcc: 10 }
-          - { os: macos-12, gcc: 11 }
+        os: [macos-10.15, macos-11, macos-12]
       fail-fast: false
-    runs-on: ${{ matrix.cfg.os }}
+    runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v2
@@ -86,13 +83,13 @@ jobs:
 
       - name: Build OGS5-FEM
         env:
-          CC: gcc-${{ matrix.cfg.gcc }}
-          CXX: g++-${{ matrix.cfg.gcc }}
+          CC: gcc-11
+          CXX: g++-11
         run: |
-          cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release
+          cmake -B build -S . -DOGS_NO_EXTERNAL_LIBS=ON  -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=14
           cmake --build build/ --config Release -j --target package
 
       - uses: actions/upload-artifact@v2
         with:
-          name: ${{ matrix.cfg.os }}
+          name: ${{ matrix.os }}
           path: ./build/ogs-*.tar.gz