Go中的条件编译

I'm trying to write a Go wrapper using CGo for ENet.

When I tried to compile my wrapper on a Mac the library was older and had a slightly different interface. 99% of the code is the same just a few C calls need to change.

What is the best practice for dealing with a problem like this in Go?
Is there some way to do conditional compilation or conditional imports?

Go does not have conditional compilation or conditional imports. Handle the type differences in C code.

Are the [Go] authors opposed to preprocessing?

Separate out the platform-specific stuff into a separate file, e.g. stuff.go

Now replace stuff.go with versions for the different platforms, like stuff_darwin.go (for Mac), stuff_windows.go, stuff_linux.go, etc.

If a file has a suffix like that, the go command will compile it only on the platform specified.