Compilation on MacOS fails

[fako1024]

As raised in this issue, compilation currently fails on MacOS. When trying to cross-compile for Darwin, different errors occur:

# GOOS=darwin GOARCH=amd64 go build
# github.com/fako1024/gatt
./device_darwin.go:34:7: undefined: xpc.XPC
./device_darwin.go:275:48: undefined: xpc.Dict
./device_darwin.go:367:39: undefined: xpc.Dict
./device_darwin.go:475:39: undefined: xpc.Dict
./device_darwin.go:481:39: undefined: xpc.Dict
./device_darwin.go:496:41: undefined: xpc.Dict
./peripheral_darwin.go:22:7: undefined: xpc.UUID
./peripheral_darwin.go:221:7: undefined: xpc.Dict
./peripheral_darwin.go:222:12: undefined: xpc.Dict
./peripheral_darwin.go:225:43: undefined: xpc.Dict
./peripheral_darwin.go:225:43: too many errors

[fako1024]

Mh, or maybe not:

[arch@cf6bac71f57d gatt]$ go test ./...
ok  	github.com/fako1024/gatt	0.033s
?   	github.com/fako1024/gatt/examples/option	[no test files]
?   	github.com/fako1024/gatt/examples/service	[no test files]
?   	github.com/fako1024/gatt/linux	[no test files]
?   	github.com/fako1024/gatt/linux/cmd	[no test files]
?   	github.com/fako1024/gatt/linux/evt	[no test files]
?   	github.com/fako1024/gatt/linux/gioctl	[no test files]
?   	github.com/fako1024/gatt/linux/socket	[no test files]
?   	github.com/fako1024/gatt/linux/util	[no test files]
?   	github.com/fako1024/gatt/xpc	[no test files]
[arch@cf6bac71f57d gatt]$ go build ./...
[arch@cf6bac71f57d gatt]$

[fako1024]

Never mind the previous comment, since I had to run the tests inside a Docker container (no physical Mac available) it would still compile for linux/amd64. Was able to reproduce via GitHub action / workflow building / testing against a MacOS runner.