const syscall.IP_ADD_MEMBERSHIP

2 uses

	syscall (current package)
		zerrors_linux_amd64.go#L427: 	IP_ADD_MEMBERSHIP                = 0x23

	net
		sockoptip_posix.go#L19: 	err := fd.pfd.SetsockoptIPMreq(syscall.IPPROTO_IP, syscall.IP_ADD_MEMBERSHIP, mreq)

The pages are generated with Golds v0.6.7. (GOOS=linux GOARCH=amd64)
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