Build spectre configs

Author: walbourn

.github/workflows/main.yml

@@ -87,3 +87,13 @@ jobs:
     - name: 'Build'
       working-directory: ${{ github.workspace }}
       run: cmake --build out\build\${{ matrix.build_type }}
+
+    - if: matrix.arch != 'amd64_arm64'
+      name: 'Configure CMake (Spectre)'
+      working-directory: ${{ github.workspace }}
+      run: cmake --preset=${{ matrix.build_type }} -DENABLE_SPECTRE_MITIGATION=ON
+
+    - if: matrix.arch != 'amd64_arm64'
+      name: 'Build (Spectre)'
+      working-directory: ${{ github.workspace }}
+      run: cmake --build out\build\${{ matrix.build_type }}

.github/workflows/msbuild.yml

@@ -50,3 +50,13 @@ jobs:
       name: 'Build (UWP)'
       working-directory: ${{ github.workspace }}
       run: msbuild /m /p:Configuration=${{ matrix.build_type }} /p:Platform=${{ matrix.platform }} ./DirectXTex_Windows10_2022.sln
+
+    - if: matrix.platform != 'ARM64'
+      name: 'Build (Spectre)'
+      working-directory: ${{ github.workspace }}
+      run: msbuild /m /p:SpectreMitigation=Spectre /p:Configuration=${{ matrix.build_type }} /p:Platform=${{ matrix.platform }} ./DirectXMesh_Desktop_${{ matrix.vs }}.sln
+
+    - if: matrix.platform != 'ARM64'
+      name: 'Build (Spectre Windows 10)'
+      working-directory: ${{ github.workspace }}
+      run: msbuild /m /p:SpectreMitigation=Spectre /p:Configuration=${{ matrix.build_type }} /p:Platform=${{ matrix.platform }} ./DirectXMesh_Desktop_${{ matrix.vs }}_Win10.sln