The bug 1102 obsoletes inet_addr function. There's at least one other place having a reference to this function, namely getaddrinfo() function, says:
If the specified address family is AF_INET or AF_UNSPEC, address strings using Internet standard dot notation as specified in inet_addr are valid. This reference to inet_addr should probably change to a (newly created) subsection in the "Definitions" section of the base volume.