Commits on Jun 14, 2023

1. Support building against macOS universal binaries …

   FIXES: #1087
   
   A "universal binary" is a fat binary which contains multiple builds for
   different architectures. When Postgres is packaged in this format it's
   necessary to slice out the build for the current architecture before
   trying to parse it. The program terminates early if the universal binary
   doesn't support the current architecture.
   
   The list of supported architectures in `slice_arch32` is limited by
   [`object`][object-arch], which supports fewer than [Rust][rust-arch].
   
   The universal binary test fixture was simply chosen because of it's
   small size relative to other binaries in Postgres.
   
   [^1]: gimli-rs/object#454 (comment)
   
   [rust-arch]: http://doc.rust-lang.org/1.68.2/std/env/consts/constant.ARCH.html
   [object-arch]: https://docs.rs/object/latest/object/read/macho/trait.FatArch.html#method.architecture

   

   clowder committed Jun 14, 2023
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