Potential Issue with IWYU package from Homebrew

[abhinandanudupa]

I have been working on a GitHub Action for a Open Source Project which needed the source code to be scanned with IWYU.

I have installed LLVM, cmake ,clang and all the required dependencies for the project along with IWYU [include-what-you-use] from Homebrew with the commads as shown:

    brew install ninja boost cmake llvm
    
    export PATH="/usr/local/opt/llvm/bin:$PATH"
    export LDFLAGS="-L/usr/local/opt/llvm/lib -Wl,-rpath,/usr/local/opt/llvm/lib"
    export CPPFLAGS="-I/usr/local/opt/llvm/include"
    export CC=clang
    export CXX=clang++
    
    brew install include-what-you-use

and then running the scan on the source of the project with:

    cmake -Bbuild -GNinja -DWASMEDGE_BUILD_TESTS=ON -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE=include-what-you-use -DCMAKE_BUILD_TYPE=Debug .

I get an assertion error:

FAILED: lib/executor/CMakeFiles/wasmedgeExecutor.dir/engine/engine.cpp.o 
/usr/local/Cellar/cmake/3.22.3/bin/cmake -E __run_co_compile --iwyu="include-what-you-use;--driver-mode=g++" -- /usr/local/opt/llvm/bin/clang++ -DSPDLOG_COMPILED_LIB -I/Users/runner/work/WasmEdge/WasmEdge/build/include -I/Users/runner/work/WasmEdge/WasmEdge/include -I/Users/runner/work/WasmEdge/WasmEdge/build/_deps/spdlog-src/include -I/Users/runner/work/WasmEdge/WasmEdge/build/lib/system -isystem /usr/local/include -g -isysroot /Applications/Xcode_13.2.1.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX12.1.sdk -mmacosx-version-min=11.6 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -Wall -Wextra -Werror -Wno-error=pedantic -Wno-psabi -Wno-c++20-designator -Wno-c99-extensions -Wno-covered-switch-default -Wno-documentation-unknown-command -Wno-error=nested-anon-types -Wno-error=old-style-cast -Wno-error=unused-command-line-argument -Wno-ctad-maybe-unsupported -Wno-gnu-anonymous-struct -Wno-keyword-macro -Wno-language-extension-token -Wno-newline-eof -Wno-shadow-field-in-constructor -Wno-signed-enum-bitfield -Wno-switch-enum -Wno-undefined-func-template -Wno-error=shadow-field -Wno-reserved-identifier -std=c++17 -MD -MT lib/executor/CMakeFiles/wasmedgeExecutor.dir/engine/engine.cpp.o -MF lib/executor/CMakeFiles/wasmedgeExecutor.dir/engine/engine.cpp.o.d -o lib/executor/CMakeFiles/wasmedgeExecutor.dir/engine/engine.cpp.o -c /Users/runner/work/WasmEdge/WasmEdge/lib/executor/engine/engine.cpp
Error running 'include-what-you-use': /tmp/include-what-you-use-20211213-18869-iq4d5j/include-what-you-use/iwyu.cc:1978: Assertion failed: TODO(csilvers): for objc and clang lang extensions
Subprocess aborted

Check out the action here and the logs of the run here.

But when I compiled IWYU from source with LLVM and clang [installed with Homebrew] and ran the scan again, I get no such issues. I wonder if there are any issues with the IWYU package from Homebrew.

Using this command to build IWYU

    mkdir build && cd build
    cmake -G "Unix Makefiles" ../include-what-you-use-0.17
    make -j install

Check out the action here and the logs of this run here.
[All the scans happen on macos-latest i.e. macOS 11]

Please note that I may not be able to retry anything as I am working in a CI environment and don't have access to a MacOS device.