Cgo multicast doesn't build on macOS 13

[rex4539]

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/hfs/hfs_format.h:794:2: error: unknown type name 'uuid_string_t'; did you mean 'io_string_t'?
        uuid_string_t   ext_jnl_uuid;
        ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/device/device_types.h:89:33: note: 'io_string_t' declared here
typedef char                    io_string_t[512];
                                ^

...

/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/hfs/hfs_format.h:796:20: error: use of undeclared identifier 'uuid_string_t'
        char            reserved[JIB_RESERVED_SIZE];
                                 ^
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include/hfs/hfs_format.h:787:61: note: expanded from macro 'JIB_RESERVED_SIZE'
#define JIB_RESERVED_SIZE  ((32*sizeof(u_int32_t)) - sizeof(uuid_string_t) - 48)
                                                            ^

[neilalexander]

You will need to provide more details than that.

Which version of macOS, which version of Xcode and which version of Go?

[rex4539]

macOS 13.0 (22A5358e) Xcode 14.1 beta 3 (14B5033e) go version go1.19.1 darwin/amd6

[neilalexander]

I'm wondering if this is something to do with the macOS multicast code, can you try building with CGO_ENABLED=0?

Failing that, it looks like there's something in the macOS SDK, so would recommend you try with a release version like Xcode 14.0.1.

[rex4539]

I'm wondering if this is something to do with the macOS multicast code, can you try building with CGO_ENABLED=0?

This worked.

[neilalexander]

OK, glad to hear it. Will keep this issue open and rename it.

[neilalexander]

Closing as out-of-date.

[rex4539]

Nope. It's still up to date.

[neilalexander]

I can't reproduce on three different systems — either there is something wrong with your Xcode/SDKs install, or you have out-of-date binaries in your Go toolchain. Try updating to the most recent Go version and then reinstalling gomobile afterwards.