Experiment using -DCMAKE_BUILD_TYPE=Debug for Centos 8.

Author: rwgk

.github/workflows/ci.yml

@@ -592,7 +592,8 @@ jobs:
     - name: Install dependencies
       run: python3 -m pip install cmake -r tests/requirements.txt --prefer-binary
 
-    - name: Configure
+    - name: Configure 7
+      if: matrix.centos == 7
       shell: bash
       run: >
         cmake -S . -B build
@@ -602,6 +603,20 @@ jobs:
         -DCMAKE_CXX_STANDARD=11
         -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
 
+    - name: Configure 8
+      if: matrix.centos == 8
+      shell: bash
+      run: >
+        cmake -S . -B build
+        # Using Debug to avoid segfault that appeared around 2021-06-04,
+        # apparently when the gcc version changed from 8.3 to 8.4.
+        -DCMAKE_BUILD_TYPE=Debug
+        -DPYBIND11_WERROR=ON
+        -DDOWNLOAD_CATCH=ON
+        -DDOWNLOAD_EIGEN=ON
+        -DCMAKE_CXX_STANDARD=11
+        -DPYTHON_EXECUTABLE=$(python3 -c "import sys; print(sys.executable)")
+
     - name: Build
       run: cmake --build build -j 2