Updated macos GitHub Action to LLVM 19 (#319)

Author: bkryza

.github/workflows/macos.yml

@@ -37,7 +37,7 @@ jobs:
         uses: hendrikmuhs/[email protected]
 
       - name: Install dependencies using homebrew
-        run: brew install llvm@18 ninja yaml-cpp cmake ccache
+        run: brew update && brew install llvm@19 ninja yaml-cpp cmake ccache
 
       - name: Build and test
         run: CC=/opt/homebrew/opt/llvm/bin/clang CXX=/opt/homebrew/opt/llvm/bin/clang++ CMAKE_PREFIX=/opt/homebrew/opt/llvm/lib/cmake/llvm/ CMAKE_GENERATOR=Ninja CMAKE_EXE_LINKER_FLAGS="-L/opt/homebrew/opt/llvm/lib/c++ -Wl,-rpath,/opt/homebrew/opt/llvm/lib/c++" ENABLE_OBJECTIVE_C_TEST_CASES=ON make test
@@ -46,4 +46,4 @@ jobs:
         run: debug/src/clang-uml --version
 
       - name: Print help
-        run: debug/src/clang-uml --help
+        run: debug/src/clang-uml --help

CMakeLists.txt

@@ -115,6 +115,12 @@ if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
     if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 19)
         set(CUSTOM_COMPILE_OPTIONS ${CUSTOM_COMPILE_OPTIONS} -Wno-missing-template-arg-list-after-template-kw)
     endif()
+    if(APPLE)
+        if("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm64")
+            # Use LLVM bundled unwind on Apple Silicon to fix segfaults on exception throw
+            set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L${HOMEBREW_PREFIX}/opt/llvm/lib/unwind -lunwind")
+        endif()
+    endif(APPLE)
 endif()
 
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