}
		return other, false
	}

	// Check if each version matches...
	for i, eVer := range eVers.versions {
		oVer := oVers.versions[i]
		if eVer.header != oVer.header {
			if eVer.header.hasEC() != oVer.header.hasEC() {
				// One version has EC and the other doesn't - may have been written later.
				// Compare without considering EC.
				a, b := eVer.header, oVer.header
				a.EcN, a.EcM = 0, 0
				b.EcN, b.EcM = 0, 0

	return ok
}

func (x xlMetaV2VersionHeader) matchesEC(o xlMetaV2VersionHeader) bool {
	if x.hasEC() && o.hasEC() {
		return x.EcN == o.EcN && x.EcM == o.EcM
	} // if no EC header this is an older object
	return true
}

// hasEC will return true if the version has erasure coding information.
func (x xlMetaV2VersionHeader) hasEC() bool {
	return x.EcM > 0 && x.EcN > 0
}