44: "socket type not supported",
	45: "operation not supported",
	46: "protocol family not supported",
	47: "address family not supported by protocol family",
	48: "address already in use",
	49: "can't assign requested address",
	50: "network is down",
	51: "network is unreachable",
	52: "network dropped connection on reset",
	53: "software caused connection abort",
	54: "connection reset by peer",

** configurations from all subprojects
** configurations from `buildSrc`
** included builds configurations
** configurations used by plugins
* download all artifacts discovered during resolution
* compute the requested checksums and possibly verify signatures depending on what you asked
* At the end of the build, generate the configuration file which will contain the inferred _verification metadata_

	var (
		freeFi    FileInfo
		freeFound bool
	)
	found := false
	for _, ver := range x.versions {
		header := &ver.header
		// skip listing free-version unless explicitly requested via versionID
		if header.FreeVersion() {
			nonFreeVersions--
			// remember the latest free version; will return this FileInfo if no non-free version remain
			var freeVersion xlMetaV2Version

		policiesToUpdate = policiesToUpdate.Intersection(existingPolicySet)
		newPolicySet = existingPolicySet.Difference(policiesToUpdate)
	}
	// We return an error if the requested policy update will have no effect.
	if policiesToUpdate.IsEmpty() {
		err = errNoPolicyToAttachOrDetach
		return
	}

	newPolicies := newPolicySet.ToSlice()

	{46, "EPFNOSUPPORT", "protocol family not supported"},
	{47, "EAFNOSUPPORT", "address family not supported by protocol family"},
	{48, "EADDRINUSE", "address already in use"},
	{49, "EADDRNOTAVAIL", "can't assign requested address"},
	{50, "ENETDOWN", "network is down"},
	{51, "ENETUNREACH", "network is unreachable"},
	{52, "ENETRESET", "network dropped connection on reset"},
	{53, "ECONNABORTED", "software caused connection abort"},

	94:  "socket type not supported",
	95:  "operation not supported",
	96:  "protocol family not supported",
	97:  "address family not supported by protocol",
	98:  "address already in use",
	99:  "cannot assign requested address",
	100: "network is down",
	101: "network is unreachable",
	102: "network dropped connection on reset",
	103: "software caused connection abort",
	104: "connection reset by peer",

	{46, "EPFNOSUPPORT", "protocol family not supported"},
	{47, "EAFNOSUPPORT", "address family not supported by protocol family"},
	{48, "EADDRINUSE", "address already in use"},
	{49, "EADDRNOTAVAIL", "can't assign requested address"},
	{50, "ENETDOWN", "network is down"},
	{51, "ENETUNREACH", "network is unreachable"},
	{52, "ENETRESET", "network dropped connection on reset"},
	{53, "ECONNABORTED", "software caused connection abort"},

	{46, "EPFNOSUPPORT", "protocol family not supported"},
	{47, "EAFNOSUPPORT", "address family not supported by protocol family"},
	{48, "EADDRINUSE", "address already in use"},
	{49, "EADDRNOTAVAIL", "can't assign requested address"},
	{50, "ENETDOWN", "network is down"},
	{51, "ENETUNREACH", "network is unreachable"},
	{52, "ENETRESET", "network dropped connection on reset"},
	{53, "ECONNABORTED", "software caused connection abort"},

	{46, "EPFNOSUPPORT", "protocol family not supported"},
	{47, "EAFNOSUPPORT", "address family not supported by protocol family"},
	{48, "EADDRINUSE", "address already in use"},
	{49, "EADDRNOTAVAIL", "can't assign requested address"},
	{50, "ENETDOWN", "network is down"},
	{51, "ENETUNREACH", "network is unreachable"},
	{52, "ENETRESET", "network dropped connection on reset"},
	{53, "ECONNABORTED", "software caused connection abort"},

	122:  "operation not supported",
	123:  "protocol family not supported",
	124:  "address family not supported by protocol",
	125:  "address already in use",
	126:  "cannot assign requested address",
	127:  "network is down",
	128:  "network is unreachable",
	129:  "network dropped connection on reset",
	130:  "software caused connection abort",
	131:  "connection reset by peer",