buffer to shrink instead of expand if a reply contained 8 or more records.

ares_addr union is now changed into an internal struct which also holds
the address family.

HAVE_IOCTL_SIOCGIFADDR since it's needed to use SIOCGIFADDR and Watcom C
doesn't currently define it.

warnings

only

  resolves a host name from the given file, using the regular hosts syntax.

upcomming work to support the broadest range of Autoconf versions

used, and define HAVE_IOCTL_SIOCGIFADDR if appropriate.

checks for inet_ntoa_r() inet_ntop() and inet_pton()

non-blocking mode, and decouple function detection from function capability.

  in man resolv.conf:

  causes round robin selection of nameservers from among those listed.  This
  has the effect of spreading the query load among all listed servers, rather
  than having all clients try the first listed server first every time.

  You can enable it with ARES_OPT_ROTATE

convoluted, compiler dependant and in some cases even build target dependat.

 and CHECK_FUNC_GETADDRINFO_UNFREEABLE_AI_CANONNAME
internal to CHECK_FUNC_GETADDRINFO

function returns an addrinfo with an unfreeable ai_canonname member ptr.

function returns an addrinfo with an unfreeable ai_addr member ptr.

  Select ANSI C89 dialect plus GNU extensions, again.

  Select precise floating-point model, otherwise doubles are less than 64-bit wide

icc test adjustment:

  Select c89 dialect

  Enable more icc warnings.

  Optimization disabling options used only for icc 9.1