style build

on a host with a buggy resolver that strips all but the bottom 8 bits of
each octet.  The resolved address in this case (192.0.2.127) is guaranteed
never to belong to a real host (see RFC3330).

the default options set in the Makefile

between platforms

these days...!

options used by runtests.pl during testing (useful for disabling valgrind).

scripts use the version in packages/vms/

server

  inet_addr() functions seems to use &255 on all numericals in a ipv4 dotted
  address which makes a different failure... Now I've modified the ipv4
  resolve code to use inet_pton() instead in an attempt to make these systems
  better detect this as a bad IP address rather than creating a toally bogus
  address that is then passed on and used.

but using illegal values

never executed code when -Wunreachable-code is used

targetos only and not build os. Commented away the line that enables perl
warnings.