llvm/bin/clang - broken. macOS Ventura

[IgorehaV]

Hi guys. I've an issue with ./build.sh and really can't understand where the problem. Here is the log from terminal: `-- Check for working C compiler: /usr/local/opt/llvm/bin/clang -- Check for working C compiler: /usr/local/opt/llvm/bin/clang - broken CMake Error at /usr/local/Cellar/cmake/3.24.3/share/cmake/Modules/CMakeTestCCompiler.cmake:69 (message): The C compiler

"/usr/local/opt/llvm/bin/clang"

is not able to compile a simple test program.

It fails with the following output:

Change Dir: /Users/admin/Documents/AirSim/build_release/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/make -f Makefile cmTC_8ccbc/fast && /Applications/Xcode.app/Contents/Developer/usr/bin/make  -f CMakeFiles/cmTC_8ccbc.dir/build.make CMakeFiles/cmTC_8ccbc.dir/build
Building C object CMakeFiles/cmTC_8ccbc.dir/testCCompiler.c.o
/usr/local/opt/llvm/bin/clang   -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.0.sdk -MD -MT CMakeFiles/cmTC_8ccbc.dir/testCCompiler.c.o -MF CMakeFiles/cmTC_8ccbc.dir/testCCompiler.c.o.d -o CMakeFiles/cmTC_8ccbc.dir/testCCompiler.c.o -c /Users/admin/Documents/AirSim/build_release/CMakeFiles/CMakeTmp/testCCompiler.c
Linking C executable cmTC_8ccbc
/usr/local/Cellar/cmake/3.24.3/bin/cmake -E cmake_link_script CMakeFiles/cmTC_8ccbc.dir/link.txt --verbose=1
/usr/local/opt/llvm/bin/clang  -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX13.0.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/cmTC_8ccbc.dir/testCCompiler.c.o -o cmTC_8ccbc 
ld: library not found for -lSystem
clang-15: error: linker command failed with exit code 1 (use -v to see invocation)
make[1]: *** [cmTC_8ccbc] Error 1
make: *** [cmTC_8ccbc/fast] Error 2

CMake will not be able to correctly generate this project. Call Stack (most recent call first): CMakeLists.txt:2 (project)

-- Configuring incomplete, errors occurred!`

My Mac is on Ventura OS. The latest Xcode version and seems to be the latest Xcode Command tools base on xcode-select install command. -- The C compiler identification is Clang 15.0.3 -- The CXX compiler identification is Clang 15.0.3

I tried to changes llvm to llvm@15 in the setup.sh but it doesn't help me. The same error still appears.

Best regards

[deonblaauw]

I had a similar problem when trying to build for Unity using the build.sh file under AirSim/Unity.

I managed to fix this today by using which clang and which clang++ to get the path where the compilers are installed, then I changed my build.sh file (under AirSim/Unity). Mine were both under /usr/bin/ , this is the section in the build.sh file I changed:

if [ "$(uname)" == "Darwin" ]; then
    export CC=/usr/bin/clang
    export CXX=/usr/bin/clang++
else
    export CC="clang-8"
    export CXX="clang++-8"
fi

I also had to do sudo xcode-select --install to get the script to work (remember to restart your terminal after using this command)

[imccs9911]

Same problem 😒