[Help-smalltalk] RE: Mingwin Patch

[Brent Fulgham]

> I'd like you to expand on what's needed from glib and what's winx and
> whether it's possible to extract code from them into GNU Smalltalk's
> tarball.
>

The only thing needed from GLIB is the implementation of ftruncate, which
appears to be as simple as:


#include <stdlib.h>
#include <stdio.h>

int
ftruncate (int fd, unsigned int size)
{
  HANDLE hfile;
  unsigned int curpos;

  g_return_val_if_fail (fd >= 0, -1);
  
  hfile = (HANDLE) _get_osfhandle (fd);
  curpos = SetFilePointer (hfile, 0, NULL, FILE_CURRENT);
  if (curpos == 0xFFFFFFFF
      || SetFilePointer (hfile, size, NULL, FILE_BEGIN) == 0xFFFFFFFF
      || !SetEndOfFile (hfile))
    {
      gint error = GetLastError ();

      switch (error)
        {
        case ERROR_INVALID_HANDLE:
          errno = EBADF;
          break;
        default:
          errno = EIO;
          break;
        }
      return -1;
    }
  return 0;
}

This code is GPL'd, so should pose no integration problem.

 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.

Integrating this into the sources will remove the library dependency
completely.
 
> Also I'll change WIN32 and _WIN32 to __MINGW32__.

Are you sure you want to?  I would rather see "CYGWIN" special-cased
(since it follows POSIX semantics) while MINGW32 and plain-old Windows
WIN32 use the same "Windows-y" behavior.

Stand by for WINX information...

Regards,

-Brent