Disable neon for apple targets

[Jake-Shadle]

Workaround for #230.

Don't really have time to look at this more in depth, so this just disables neon intrinsics for apple targets leaving the rest of them untouched. There's probably just a missing flag or something, but someone who actually has the will to compile for aarch64-apple-darwin can maybe figure that out.

[Jake-Shadle]

It would probably be good to add CI checking of aarch64-apple-darwin, apple targets are such a pain the ass I never bothered checking AFAIR, I'm fairly sure it has literally never worked, (ie I get the same errors on an outdated clang 13 machine).

[Byron]

Thanks a lot for your help, it's much appreciated!

A local test showed that it does indeed compile now.

Also, from what I can tell, it already is compiled on all platforms using a matrix, but it's allowed to fail when the CC feature is enabled. Even though warnings are emitted, thus far I admit to not have noticed them.

[Jake-Shadle]

Not aarch64-apple-darwin, https://github.com/rust-lang/libz-sys/blob/223f5650c75fb4c0fec5e00fc47f2fd6b1a95cc2/.github/workflows/ci.yml#L79C9-L80C32

[Byron]

That's true!

I wonder if the tests further down run on aarch by default? MacOS in included there and feature is tested, without setting a target specifically.

libz-sys/.github/workflows/ci.yml

Lines 161 to 170 in 223f565

	- run: cargo build --no-default-features --features zlib-ng-no-cmake-experimental-community-maintained || echo "::warning::failed to build libz-ng with --features zlib-ng-no-cmake-experimental-community-maintained"
	strategy:
	fail-fast: false
	matrix:
	os:
	- windows-2022
	- macos-latest
	- ubuntu-latest