Only bash-like shells work on macOS for v6.30

[chrisburr]

@vepadulano I just noticed there is a clang patch missing (conda-forge/clangdev-feedstock@027fdaa) which means the conda package only works with bash/zsh on macOS:

$ root
C system headers (glibc/Xcode/Windows SDK) must be installed.
fatal error: module map file 'module.modulemap' not found
Warning in cling::IncrementalParser::CheckABICompatibility():
  Failed to extract C++ standard library version.
Warning in cling::IncrementalParser::CheckABICompatibility():
  Possible C++ standard library mismatch, compiled with _LIBCPP_ABI_VERSION '1'
  Extraction of runtime standard library version was: ''
Replaced symbol at_quick_exit cannot be found in JIT!
Module Darwin not found.
Failed to load module std
<<< cling interactive line includer >>>: fatal error: module file '/tmp/root-feedstock/miniforge3/conda-bld/root_base_1719007212029/work/build-dir/lib/Darwin.pcm' not found: module file not found
<<< cling interactive line includer >>>: note: imported by module '_Builtin_intrinsics' in '/Users/cburr/mambaforge/envs/root-env/lib/_Builtin_intrinsics.pcm'

[vepadulano]

I see, thanks for noticing! This means we need to update both 13.x and 16.x before then updating ROOT 6.30 and 6.32 builds. I'll take care of this.

[vepadulano]

So just to keep track of the status of this effort:

• The PR for 16.x has been up for a while, after some back-and-forth I believe it is now in a good state and hopefully will be approved and merged soon [16.x] Improve sysroot detection on MacOS clangdev-feedstock#298
• clangdev 13.x is currently broken upstream, I have put some effort into fixing it (see this PR), but the causes of the current state of things are unclear even to the feedstock maintainers.

[vepadulano]

The PR has been merged for 16.x. For 13.x we probably have no chances to move forward. Even if we understood how to fix the currently broken state, we have seen that updates to the standard library on Mac break cling usage and we cannot pin libc++ to the same version of the OS SDK.

[vepadulano]

@chrisburr Let me know if this can be closed