Problems using zig to compile a CGo program on a mac

Hi!

I’m trying to compile a hello world CGO program using the zig toolchain. (My ultimate goal is to cross compile a CGO app to Linux/Mac, ARM/x86, but baby steps)

I get an error when compiling with zig.

The program is

    package main
    
    import "C"
    import "fmt"
    
    func main() {
    	fmt.Println(C.int(10))
    }

My build command is

 CGO_ENABLED=1 GOOS=darwin GOARCH=amd64 CC="zig cc -target x86_64-macos" CXX="zig c++ -target x86_64-macos" go build

and the error is

warning: unsupported linker arg: -headerpad
warning: unsupported linker arg: 1144
warning: unsupported linker arg: -no_pie
warning: unsupported linker arg: -pagezero_size
warning: unsupported linker arg: 4000000
/usr/local/go/pkg/tool/darwin_amd64/link: /usr/local/go/pkg/tool/darwin_amd64/link: running dsymutil failed: exit status 1
LLVM ERROR: Malformed MachO file.

My system:

  • Macos Catalina 10.15.7
  • Apple clang version 12.0.0
  • zig 0.9.1
  • go version go1.18 darwin/amd64

I’ve tried a variety of things, setting sysroot flag etc. But no joy yet. Presumably there is a simple config I’m missing. Any help appreciated.

[cross posted from reddit]