1/* Helper routines for cygwin-specific command-line parsing.
2   Contributed by Christopher Faylor (cgf@redhat.com)
3   Copyright 2003 Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2, or (at your option)
10any later version.
11
12GCC is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING.  If not, write to
19the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20Boston, MA 02110-1301, USA.  */
21
22#include "config.h"
23#include "system.h"
24#include "coretypes.h"
25#include "tm.h"
26
27#include "safe-ctype.h"
28#include <string.h>
29
30/*
31static void remove_w32api (void);
32*/
33static void add_mingw (void);
34static void set_mingw (void) __attribute__ ((constructor));
35
36static void
37add_mingw (void)
38{
39  char **av;
40  char *p;
41  for (av = cvt_to_mingw; *av; av++)
42    {
43      int sawcygwin = 0;
44      while ((p = strstr (*av, "-cygwin")))
45	{
46	  char *over = p + sizeof ("-cygwin") - 1;
47	  memmove (over + 1, over, strlen (over));
48	  memcpy (p, "-mingw32", sizeof("-mingw32") - 1);
49	  p = ++over;
50	  while (ISALNUM (*p))
51	    p++;
52	  strcpy (over, p);
53	  sawcygwin = 1;
54	}
55      if (!sawcygwin && !strstr (*av, "mingw"))
56	strcat (*av, CYGWIN_MINGW_SUBDIR);
57    }
58}
59
60
61static void
62set_mingw (void)
63{
64  char *env = getenv ("GCC_CYGWIN_MINGW");
65  if (env && *env == '1')
66    add_mingw ();
67}
68