[Groff] CVS Broken for Win32

[Keith MARSHALL]

Werner,

The relocation patch, recently provided by Kees Zeelenberg, seems to break
the current CVS for Win32 :-(

The problem appears to be due to the use of `realpath()' in 
`relocate.cpp';
the native Win32 equivalent for this function is `_fullpath()', and the
semantics are different.  It could probably be fixed with an appropriate
`#define' in `nonposix.h', or, if this module is specific to Win32 in any
case, simply by modifying `relocate.cpp' itself;  which approach do you
prefer?

I don't have time to investigate further today, but may get an opportunity
to develop a patch later in the week.

Best regards,
Keith.