fix build: add submodule init

.github/workflows/test-linux-build.yml

@@ -28,6 +28,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install build-essential cmake
           pip install --upgrade pip wheel build
+          git submodule update --init --recursive
           echo "SKBUILD_BUILD_OPTIONS=${{ env.SKBUILD_BUILD_OPTIONS }}" >> "$GITHUB_ENV"
 
       ### libcasm-global ###

.github/workflows/test-linux-cxx-only.yml

@@ -28,6 +28,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install build-essential cmake
           pip install --upgrade pip wheel build
+          git submodule update --init --recursive
           echo "SKBUILD_BUILD_OPTIONS=${{ env.SKBUILD_BUILD_OPTIONS }}" >> "$GITHUB_ENV"
 
       ### libcasm-global ###

.github/workflows/test-linux.yml

@@ -28,6 +28,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install build-essential cmake
           pip install --upgrade pip wheel
+          git submodule update --init --recursive
           echo "SKBUILD_BUILD_OPTIONS=${{ env.SKBUILD_BUILD_OPTIONS }}" >> "$GITHUB_ENV"
 
       ### libcasm-global ###

.github/workflows/test-macos-build.yml

@@ -21,6 +21,7 @@ jobs:
           brew update
           brew install cmake
           pip install --upgrade pip wheel build
+          git submodule update --init --recursive
           pip install -r test_requirements.txt
 
       - name: make

.github/workflows/test-macos.yml

@@ -21,6 +21,7 @@ jobs:
           brew update
           brew install cmake
           pip install --upgrade pip wheel
+          git submodule update --init --recursive
           pip install -r test_requirements.txt
 
       - name: make

pyproject.toml

@@ -63,6 +63,9 @@ build = "cp39-* cp310-* cp311-* cp312-*"
 # Build for cpython only
 skip =  "pp*"
 
+# Checkout submodules
+before-all = "git submodule update --init --recursive"
+
 # Need libcasm dependencies at wheel repair stage
 before-build = "pip install -r build_requirements.txt"