Make sanitizer optional

Keep it in CI.

Author: adazem009

.github/workflows/utests-minimal.yml

@@ -19,7 +19,7 @@ jobs:
         submodules: true
 
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DLIBSCRATCHCPP_BUILD_UNIT_TESTS=ON -DLIBSCRATCHCPP_AUDIO_SUPPORT=OFF -DLIBSCRATCHCPP_NETWORK_SUPPORT=OFF
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DLIBSCRATCHCPP_BUILD_UNIT_TESTS=ON -DLIBSCRATCHCPP_ENABLE_SANITIZER=ON -DLIBSCRATCHCPP_AUDIO_SUPPORT=OFF -DLIBSCRATCHCPP_NETWORK_SUPPORT=OFF
 
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j$(nproc --all)

.github/workflows/utests.yml

@@ -24,7 +24,7 @@ jobs:
         sudo apt-get install -y nlohmann-json3-dev libutfcpp-dev
       shell: bash
     - name: Configure CMake
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DLIBSCRATCHCPP_BUILD_UNIT_TESTS=ON
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DLIBSCRATCHCPP_BUILD_UNIT_TESTS=ON -DLIBSCRATCHCPP_ENABLE_SANITIZER=ON
 
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j$(nproc --all)

CMakeLists.txt

@@ -9,8 +9,9 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 option(LIBSCRATCHCPP_BUILD_UNIT_TESTS "Build unit tests" ON)
 option(LIBSCRATCHCPP_NETWORK_SUPPORT "Support for downloading projects" ON)
 option(LIBSCRATCHCPP_PRINT_LLVM_IR "Print LLVM IR of compiled Scratch scripts (for debugging)" OFF)
+option(LIBSCRATCHCPP_ENABLE_SANITIZER "Enable sanitizer to detect memory issues" OFF)
 
-if (CMAKE_BUILD_TYPE MATCHES "Debug")
+if (LIBSCRATCHCPP_ENABLE_SANITIZER)
     set(SANITIZER_FLAGS "-fsanitize=undefined -fsanitize=address -fno-omit-frame-pointer")
     set(CMAKE_CFLAGS ${CMAKE_CFLAGS} ${SANITIZER_FLAGS})
     set(CMAKE_CXX_FLAGS ${CMAKE_CXX_FLAGS} ${SANITIZER_FLAGS})