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

   Contributed by Christopher Faylor (cgf@redhat.com)

   Copyright 2003, 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 "safe-ctype.h"

#include <string.h>

/*

static void remove_w32api (void);

*/

static void add_mingw (void);

static void set_mingw (void) __attribute__ ((constructor));

static void

add_mingw (void)

{

  char **av;

  char *p;

  for (av = cvt_to_mingw; *av; av++)

    {

      int sawcygwin = 0;

      while ((p = strstr (*av, "-cygwin")))

        {

          char *over = p + sizeof ("-cygwin") - 1;

          memmove (over + 1, over, strlen (over));

          memcpy (p, "-mingw32", sizeof("-mingw32") - 1);

          p = ++over;

          while (ISALNUM (*p))

            p++;

          strcpy (over, p);

          sawcygwin = 1;

        }

      if (!sawcygwin && !strstr (*av, "mingw"))

        strcat (*av, CYGWIN_MINGW_SUBDIR);

    }

}

static void

set_mingw (void)

{

  char *env = getenv ("GCC_CYGWIN_MINGW");

  if (env && *env == '1')

    add_mingw ();

}