Possible issue on M1?

[walkert]

Hi there,

If I try and run your example code on my M1 macbook I get this output:

❯ cargo build --example sample
   Compiling tid-rs v0.1.1 (tid-rs)
error: linking with `cc` failed: exit status: 1
  |
  = note: "cc" "-arch" "arm64" "
..
..
  = note: ld: file too small (length=8) file 'tid-rs/target/debug/build/tid-rs-3e035e2da80b90bd/out/libtest.a' for architecture arm64
          clang: error: linker command failed with exit code 1 (use -v to see invocation)

error: could not compile `tid-rs` due to previous error

Interestingly, if I use your crate in my own project and essentially copy the function from your readme I get:

note: Undefined symbols for architecture arm64:
            "_set_localized_cancel_title", referenced from:
                tid::LAContext::set_localized_cancel_title::h55b4e6d4d6a45629 in libtid-75eef23574f5b0ea.rlib(tid-75eef23574f5b0ea.tid.bd52d9c1-cgu.0.rcgu.o)
            "_drop_la_context", referenced from:
                _$LT$tid..LAContext$u20$as$u20$core..ops..drop..Drop$GT$::drop::h0eec580ffe93b8b2 in libtid-75eef23574f5b0ea.rlib(tid-75eef23574f5b0ea.tid.bd52d9c1-cgu.0.rcgu.o)
            "_can_evaluate_policy", referenced from:
                tid::LAContext::can_evaluate_policy::h10f49ce258699dd4 in libtid-75eef23574f5b0ea.rlib(tid-75eef23574f5b0ea.tid.bd52d9c1-cgu.0.rcgu.o)
            "_create_la_context", referenced from:
                tid::LAContext::new::h74e9106ddd97332d in libtid-75eef23574f5b0ea.rlib(tid-75eef23574f5b0ea.tid.bd52d9c1-cgu.0.rcgu.o)
            "_evaluate_policy", referenced from:
                tid::LAContext::evaluate_policy::_$u7b$$u7b$closure$u7d$$u7d$::hd72bfa3c10f42bb5 in touchid-16168130c8666de6.54mxwc64loy1apiu.rcgu.o
               (maybe you meant: tid::LAContext::can_evaluate_policy::h10f49ce258699dd4)
          ld: symbol(s) not found for architecture arm64
          clang: error: linker command failed with exit code 1 (use -v to see invocation)

Am I missing something locally? Thanks!

[Zack-Xb]

1. Add [build-dependencies] cc = "1.0.79" in Cargo.toml
2. Change build.rs to

  use std::env;
  use std::process::Command;
  use cc;

  fn main() {


   println!("cargo:rustc-link-lib=framework=Foundation");
   println!("cargo:rustc-link-lib=framework=LocalAuthentication");
   println!("cargo:rerun-if-changed=foreign/tid.m");
   println!("cargo:rerun-if-changed=foreign/tid.h");
  
  
        cc::Build::new()
        .file("foreign/tid.m")
        .include("foreign/tid.h")
        .pic(true)
        .compile("tid");
    }