Support for Apple Silicon (M1)

[darthdeus]

It seems zld doesn't compile on Apple Silicon

$ brew install michaeleisel/zld/zld
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> Updated Formulae
Updated 1 formula.

==> Tapping michaeleisel/zld
Cloning into '/Users/darth/projects/homebrew/Library/Taps/michaeleisel/homebrew-zld'...
remote: Enumerating objects: 44, done.
remote: Counting objects: 100% (44/44), done.
remote: Compressing objects: 100% (24/24), done.
remote: Total 44 (delta 8), reused 40 (delta 8), pack-reused 0
Unpacking objects: 100% (44/44), done.
Tapped 1 formula (69 files, 35.4KB).
Warning: You are running macOS on a arm64 CPU architecture.
We do not provide support for this (yet).
Reinstall Homebrew under Rosetta 2 until we support it.
You will encounter build failures with some formulae.
Please create pull requests instead of asking for help on Homebrew's GitHub,
Twitter or any other official channels. You are responsible for resolving
any issues you experience while you are running this
unsupported configuration.

==> Installing zld from michaeleisel/zld
==> Downloading https://github.com/michaeleisel/zld/archive/1.2.1.zip
==> Downloading from https://codeload.github.com/michaeleisel/zld/zip/1.2.1
##=O#- #
==> make clean
==> make build
Last 15 lines from /Users/darth/Library/Logs/Homebrew/zld/02.make:
      absl::lts_2020_02_25::container_internal::raw_hash_set<absl::lts_2020_02_25::container_internal::FlatHashMapPolicy<ld::Atom const*, unsigned long>, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Hash, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Eq, std::__1::allocator<std::__1::pair<ld::Atom const* const, unsigned long> > >::resize(unsigned long) in code_dedup.o
      absl::lts_2020_02_25::container_internal::raw_hash_set<absl::lts_2020_02_25::container_internal::FlatHashMapPolicy<ld::Atom const*, unsigned long>, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Hash, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Eq, std::__1::allocator<std::__1::pair<ld::Atom const* const, unsigned long> > >::drop_deletes_without_resize() in code_dedup.o
      std::__1::pair<unsigned long, bool> absl::lts_2020_02_25::container_internal::raw_hash_set<absl::lts_2020_02_25::container_internal::FlatHashMapPolicy<ld::Atom const*, ld::Atom const*>, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Hash, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Eq, std::__1::allocator<std::__1::pair<ld::Atom const* const, ld::Atom const*> > >::find_or_prepare_insert<ld::Atom const*>(ld::Atom const* const&) in code_dedup.o
      absl::lts_2020_02_25::container_internal::raw_hash_set<absl::lts_2020_02_25::container_internal::FlatHashMapPolicy<ld::Atom const*, ld::Atom const*>, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Hash, absl::lts_2020_02_25::container_internal::HashEq<ld::Atom const*, void>::Eq, std::__1::allocator<std::__1::pair<ld::Atom const* const, ld::Atom const*> > >::resize(unsigned long) in code_dedup.o
      ...
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

** BUILD FAILED **

The following build commands failed:
        Ld /tmp/zld-20201214-36688-g2u5qu/zld-1.2.1/build/Build/Products/Release/zld normal
(1 failure)
make: *** [build] Error 65

[michaeleisel]

Closing, let's discuss in

[michaeleisel]

* https://github.com/michaeleisel/zld/issues/73