addImport("unsafe", true)
			if cfg.BuildContext.Compiler != "gccgo" {
				addImport("runtime/cgo", true)
			}
			addImport("syscall", true)
			addImport("sync", true)

			// TODO: The .swig and .swigcxx files can use
			// %go_import directives to import other packages.
		}

		// The linker loads implicit dependencies.
		if p.Name == "main" && !p.Internal.ForceLibrary {