var runtime.enableSigChan

4 uses

	runtime (current package)
		signal_unix.go#L94: 	enableSigChan   chan uint32
		signal_unix.go#L202: 		enableSigChan <- sig
		signal_unix.go#L996: 	enableSigChan = make(chan uint32)
		signal_unix.go#L1015: 			case sig := <-enableSigChan: