3 files changed, 10 insertions, 2 deletions
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index e25d03908..ebc658792 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -21,10 +21,15 @@ jobs:
         submodules: 'true'
         fetch-depth: '0'
     - name: build
-      run: 
+      run: |
         CC=${{matrix.compiler}}
         CONFIGURATION=${{matrix.configuration}}
         ARCH=${{matrix.platform}}
+        if [[ "$CC" == "clang" ]]; then
+          CFLAGS=-Werror
+          CPPFLAGS=-Werror
+          CXXFLAGS=-Werror
+        fi
         source ./github_build.sh
     - uses: actions/upload-artifact@v3
       with:
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index e9e7a7dbf..a10467f06 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -27,6 +27,9 @@ jobs:
         CC=${{matrix.compiler}}
         CONFIGURATION=${{matrix.configuration}}
         ARCH=${{matrix.platform}}
+        CPPFLAGS=-Werror
+        CFLAGS=-Werror
+        CXXFLAGS=-Werror
         source ./github_macos_build.sh
     - name: Package
       id: package
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 994f15853..4fb9f0c58 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -28,7 +28,7 @@ jobs:
         .\premake.bat vs2017 --enable-embed-stdlib=true --arch=${{matrix.platform}} --deps=true --no-progress=true
     - name: build
       run:
-        MSBuild.exe slang.sln -v:m -m -property:Configuration=${{matrix.configuration}} -property:Platform=${{matrix.platform}} -property:WindowsTargetPlatformVersion=10.0.19041.0
+        MSBuild.exe slang.sln -v:m -m -property:Configuration=${{matrix.configuration}} -property:Platform=${{matrix.platform}} -property:WindowsTargetPlatformVersion=10.0.19041.0 -warnAsError
     - uses: actions/upload-artifact@v3
       with:
         name: slang-build-${{matrix.configuration}}-${{matrix.platform}}-${{matrix.compiler}}