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/* Helper routines for cygwin-specific command-line parsing.

   Contributed by Christopher Faylor (cgf@redhat.com)

   Copyright 2003, 2005, 2007 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 3, or (at your option)

any later version.

GCC is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with GCC; see the file COPYING3.  If not see

<http://www.gnu.org/licenses/>.  */

#include "config.h"

#include "system.h"

#include "coretypes.h"

#include "tm.h"

#include <string.h>

void

mingw_scan (int argc ATTRIBUTE_UNUSED,

            const char *const *argv,

            char **spec_machine)

{

  putenv (xstrdup ("GCC_CYGWIN_MINGW=0"));

  while (*++argv)

    if (strcmp (*argv, "-mno-win32") == 0)

      putenv (xstrdup ("GCC_CYGWIN_WIN32=0"));

    else if (strcmp (*argv, "-mwin32") == 0)

      putenv (xstrdup ("GCC_CYGWIN_WIN32=1"));

    else if (strcmp (*argv, "-mno-cygwin") == 0)

      {

        char *p = strstr (*spec_machine, "-cygwin");

        if (p)

          {

            int len = p - *spec_machine;

            char *s = xmalloc (strlen (*spec_machine) + 3);

            memcpy (s, *spec_machine, len);

            strcpy (s + len, "-mingw32");

            *spec_machine = s;

          }

        putenv (xstrdup ("GCC_CYGWIN_MINGW=1"));

      }

  return;

}