Fix: wrap xcrun --sdk arguments in quotes to allow spaces

[FeodorFitsner]

Calling arm64-apple-ios-clang script (and other aliases as well) fails if arguments contain spaces, for example:

arm64-apple-ios-clang -DPACKAGE_TARNAME="aaa" -DPACKAGE_STRING="aaa 1.2.2" -c -o src/main.o src/main.c

gives clang: invalid directory name: '1.2.2"' error.

[freakboy3742]

Thanks for the patch. I can see how this is a problem, and how the patch you've provided will fix the problem - but this is an example of something that should be submitted upstream to CPython. The shims come from CPython itself, and the patch set in this repo is generated automatically from the freakboy3742/cpython fork of that repository (applying additional patches). If this patch were applied to the support repo, it would be deleted the next time we did an update.

So - I suggest submitting this set of changes as an issue report followed by a PR on CPython itself; I'm a committer there as well, so I can merge and backport it to 3.13, and then backport to the 3.9-3.12 branches as well.

I'm going to close this PR on that basis - but I encourage you to log the issue with CPython, and then submit this set of changes as a PR.

[FeodorFitsner]

Sounds good, will do a PR to CPython repo!