msys2

.github/workflows/cmake-multi-platform.yml

@@ -115,7 +115,7 @@ jobs:
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
       # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-      shell: bash
+      shell: ${{ matrix.os == 'windows-latest' && matrix.generator == 'Ninja' && 'msys2 {0}' || 'bash' }}
       run: |
         cmake -DCMAKE_BUILD_TYPE=${{ matrix.build_type }} -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }} -DCMAKE_C_COMPILER=${{ matrix.c_compiler }} -S "${{ steps.strings.outputs.source-dir }}" -B "${{ steps.strings.outputs.build-output-dir }}" -G "${{matrix.generator}}"