Uncommenting Centos7 block (PR #3691 showed that it is working again).

Author: rwgk

.github/workflows/ci.yml

@@ -373,53 +373,53 @@ jobs:
 #      run: cmake --build build --target test_cmake_build
 
 
-#  # Testing on CentOS 7 + PGI compilers, which seems to require more workarounds
-#  centos-nvhpc7:
-#    runs-on: ubuntu-latest
-#    name: "🐍 3 • CentOS7 / PGI 20.9 • x64"
-#    container: centos:7
-#
-#    steps:
-#    - uses: actions/checkout@v2
-#
-#    - name: Add Python 3 and a few requirements
-#      run: yum update -y && yum install -y epel-release && yum install -y git python3-devel make environment-modules cmake3
-#
-#    - name: Install NVidia HPC SDK
-#      run:  yum -y install https://developer.download.nvidia.com/hpc-sdk/20.9/nvhpc-20-9-20.9-1.x86_64.rpm https://developer.download.nvidia.com/hpc-sdk/20.9/nvhpc-2020-20.9-1.x86_64.rpm
-#
-#    # On CentOS 7, we have to filter a few tests (compiler internal error)
-#    # and allow deeper template recursion (not needed on CentOS 8 with a newer
-#    # standard library). On some systems, you many need further workarounds:
-#    # https://github.com/pybind/pybind11/pull/2475
-#    - name: Configure
-#      shell: bash
-#      run: |
-#        source /etc/profile.d/modules.sh
-#        module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/20.9
-#        cmake3 -S . -B build -DDOWNLOAD_CATCH=ON \
-#                            -DCMAKE_CXX_STANDARD=11 \
-#                            -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)") \
-#                            -DCMAKE_CXX_FLAGS="-Wc,--pending_instantiations=0" \
-#                            -DPYBIND11_TEST_FILTER="test_smart_ptr.cpp;test_virtual_functions.cpp"
-#
-#    # Building before installing Pip should produce a warning but not an error
-#    - name: Build
-#      run: cmake3 --build build -j 2 --verbose
-#
-#    - name: Install CMake with pip
-#      run: |
-#        python3 -m pip install --upgrade pip
-#        python3 -m pip install pytest
-#
-#    - name: Python tests
-#      run: cmake3 --build build --target pytest
-#
-#    - name: C++ tests
-#      run: cmake3 --build build --target cpptest
-#
-#    - name: Interface test
-#      run: cmake3 --build build --target test_cmake_build
+  # Testing on CentOS 7 + PGI compilers, which seems to require more workarounds
+  centos-nvhpc7:
+    runs-on: ubuntu-latest
+    name: "🐍 3 • CentOS7 / PGI 20.9 • x64"
+    container: centos:7
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Add Python 3 and a few requirements
+      run: yum update -y && yum install -y epel-release && yum install -y git python3-devel make environment-modules cmake3
+
+    - name: Install NVidia HPC SDK
+      run:  yum -y install https://developer.download.nvidia.com/hpc-sdk/20.9/nvhpc-20-9-20.9-1.x86_64.rpm https://developer.download.nvidia.com/hpc-sdk/20.9/nvhpc-2020-20.9-1.x86_64.rpm
+
+    # On CentOS 7, we have to filter a few tests (compiler internal error)
+    # and allow deeper template recursion (not needed on CentOS 8 with a newer
+    # standard library). On some systems, you many need further workarounds:
+    # https://github.com/pybind/pybind11/pull/2475
+    - name: Configure
+      shell: bash
+      run: |
+        source /etc/profile.d/modules.sh
+        module load /opt/nvidia/hpc_sdk/modulefiles/nvhpc/20.9
+        cmake3 -S . -B build -DDOWNLOAD_CATCH=ON \
+                            -DCMAKE_CXX_STANDARD=11 \
+                            -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)") \
+                            -DCMAKE_CXX_FLAGS="-Wc,--pending_instantiations=0" \
+                            -DPYBIND11_TEST_FILTER="test_smart_ptr.cpp;test_virtual_functions.cpp"
+
+    # Building before installing Pip should produce a warning but not an error
+    - name: Build
+      run: cmake3 --build build -j 2 --verbose
+
+    - name: Install CMake with pip
+      run: |
+        python3 -m pip install --upgrade pip
+        python3 -m pip install pytest
+
+    - name: Python tests
+      run: cmake3 --build build --target pytest
+
+    - name: C++ tests
+      run: cmake3 --build build --target cpptest
+
+    - name: Interface test
+      run: cmake3 --build build --target test_cmake_build
 
 
   # Testing on GCC using the GCC docker images (only recent images supported)