gcc/config/i386/cygwin2.c

   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
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  20 Boston, 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 /*
  31 static void remove_w32api (void);
  32 */
  33 static void add_mingw (void);
  34 static void set_mingw (void) __attribute__ ((constructor));
  35
  36 static void
  37 add_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
  61 static void
  62 set_mingw (void)
  63 {
  64   char *env = getenv ("GCC_CYGWIN_MINGW");
  65   if (env && *env == '1')
  66     add_mingw ();
  67 }