CVS Feature Branch - Windows Build Broken - lib/xgethostname.c & WinSock

[Conrad T. Pino]

File "lib/xgethostname.c" calls function "gethostname" which appears
not to have a prototype.

If "#include <winsock.h>" is added to "lib/xgethostname.c" then the
issue goes away.

What is the correct fix?

--------------------Configuration: libcvs - Win32 Debug--------------------
Compiling...
xgethostname.c
H:\Conrad\Projects\cvs-1.12\lib\xgethostname.c(67) : warning C4013: 
'gethostname' undefined; assuming extern returning int
Creating library...
--------------------Configuration: libdiff - Win32 Debug--------------------
Creating library...
--------------------Configuration: cvsnt - Win32 Debug--------------------
Linking...
libdiff.lib(xgethostname.obj) : error LNK2001: unresolved external symbol 
_gethostname
.\WinDebug\cvs.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

cvs.exe - 2 error(s), 94 warning(s)