Re: [Groff] Strange error messages from Groff 1.22.3

[Eli Zaretskii]

> Date: Sat, 08 Nov 2014 21:54:27 +0100 (CET)
> Cc: address@hidden
> From: Werner LEMBERG <address@hidden>
> 
> >> Any chance to have some code in `nonposix.h' to avoid this?
> > 
> > Please suggest how.  do_file more often than not accepts strings
> > given by 'const char *', so it is not possible to modify the string
> > itself.  What else can I do?
> 
> I was imagining something primitive, e.g. a working equivalent to
> 
>   #if defined(__MSDOS__) || (defined(_WIN32) && !defined(__CYGWIN__))
>   # define DOS2UNIX_FILENAME(f) dos2unix_filename(f)
>   #else
>   # define DOS2UNIX_FILENAME(f) (f)
>   #endif

But then the non-Windows code will have to call strsave and strcpy
unnecessarily, because we cannot modify 'const char *' strings.  If
that's okay with you, doing the above is easy; I was trying not to
incur that overhead on Posix platforms.