installation problem on intel Mac

[borondics]

I have an issue with the installation on an older Mac.

The problem, even if SRW is compiled from source is the llvmlite package.

This is the error:

> pip install llvmlite

Collecting llvmlite
  Using cached llvmlite-0.46.0.tar.gz (193 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: llvmlite
  Building wheel for llvmlite (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Building wheel for llvmlite (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [42 lines of output]
      running bdist_wheel
      /Users/borondics/miniforge3/envs/barc4sr/bin/python3.11 /private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi/build.py
      -- The C compiler identification is AppleClang 16.0.0.16000026
      -- The CXX compiler identification is AppleClang 16.0.0.16000026
      -- Detecting C compiler ABI info
      -- Detecting C compiler ABI info - done
      -- Check for working C compiler: /usr/bin/cc - skipped
      -- Detecting C compile features
      -- Detecting C compile features - done
      -- Detecting CXX compiler ABI info
      -- Detecting CXX compiler ABI info - done
      -- Check for working CXX compiler: /usr/bin/c++ - skipped
      -- Detecting CXX compile features
      -- Detecting CXX compile features - done
      CMake Error at CMakeLists.txt:21 (find_package):
        Could not find a package configuration file provided by "LLVM" with any of
        the following names:

          LLVMConfig.cmake
          llvm-config.cmake

        Add the installation prefix of "LLVM" to CMAKE_PREFIX_PATH or set
        "LLVM_DIR" to a directory containing one of the above files.  If "LLVM"
        provides a separate development package or SDK, be sure it has been
        installed.


      -- Configuring incomplete, errors occurred!
      Running: cmake -G Unix Makefiles /private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi
      Traceback (most recent call last):
        File "/private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi/build.py", line 209, in <module>
          main()
        File "/private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi/build.py", line 203, in main
          main_posix('.dylib')
        File "/private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi/build.py", line 189, in main_posix
          try_cmake(here_dir, build_dir, generator)
        File "/private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi/build.py", line 127, in try_cmake
          subprocess.check_call(args)
        File "/Users/borondics/miniforge3/envs/barc4sr/lib/python3.11/subprocess.py", line 413, in check_call
          raise CalledProcessError(retcode, cmd)
      subprocess.CalledProcessError: Command '['cmake', '-G', 'Unix Makefiles', '/private/var/folders/tt/s6sbh8hn1ysbvb2bxgr5cbm40000gn/T/pip-install-t7ud3ryt/llvmlite_fbb377a3ee3141ceb4e5de46b3b112d4/ffi']' returned non-zero exit status 1.
      error: command '/Users/borondics/miniforge3/envs/barc4sr/bin/python3.11' failed with exit code 1
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for llvmlite
Failed to build llvmlite
error: failed-wheel-build-for-install

× Failed to build installable wheels for some pyproject.toml based projects
╰─> llvmlite