lynx-dev djgpp with non-Watt32 tcp-lib

[Gisle Vanem]

In file HTTCP.H at line 87:

  #if defined(__DJGPP__) && !defined(WATT32)
  #define LYGetHostByName(host) resolv(host) /* we'll use it the same way */
                                     ^^

That should be "resolve(host)". This (long standing) typo indicates to
me that no one is building this combination (DOS/djgpp+non-Watt32) anymore.
Should we drop it? To reduce "ifdef" clutter and make a leaner distribution.
I could do this if we agree on it.

BTW. I think other targets besides UNIX should benefit from using
'lynx_temp_subspace'. I.e. creating sub-directories under $TMP.

Maybe a new flag 'USE_TEMP_SUBSPACE' instead of 'UNIX'. I'm not sure
such flags should go in userdefs.h or in configure/makefile.*.
What do you think?

Gisle V.