Add ECM

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

@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        os: [windows-latest]
         build_type: [Release]
         c_compiler: [gcc, clang, cl]
         include:
@@ -35,6 +35,19 @@ jobs:
             c_compiler: cl
 
     steps:
+    - uses: actions/checkout@v4
+      with:
+        repository: 'https://invent.kde.org/frameworks/extra-cmake-modules.git'
+        ref: 'v6.1.0'
+
+    - name: Configure CMake
+      run: >
+        cmake -B ${{ steps.strings.outputs.build-output-dir }}
+        -DCMAKE_CXX_COMPILER=${{ matrix.cpp_compiler }}
+        -DCMAKE_C_COMPILER=${{ matrix.c_compiler }}
+        -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
+        -S ${{ github.workspace }}
+
     - uses: actions/checkout@v3
 
     - name: Set reusable strings