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, 2007 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 3, 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 COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #include "config.h"
  22 #include "system.h"
  23 #include "coretypes.h"
  24 #include "tm.h"
  25
  26 #include "safe-ctype.h"
  27 #include <string.h>
  28
  29 /*
  30 static void remove_w32api (void);
  31 */
  32 static void add_mingw (void);
  33 static void set_mingw (void) __attribute__ ((constructor));
  34
  35 static void
  36 add_mingw (void)
  37 {
  38   char **av;
  39   char *p;
  40   for (av = cvt_to_mingw; *av; av++)
  41     {
  42       int sawcygwin = 0;
  43       while ((p = strstr (*av, "-cygwin")))
  44         {
  45           char *over = p + sizeof ("-cygwin") - 1;
  46           memmove (over + 1, over, strlen (over));
  47           memcpy (p, "-mingw32", sizeof("-mingw32") - 1);
  48           p = ++over;
  49           while (ISALNUM (*p))
  50             p++;
  51           strcpy (over, p);
  52           sawcygwin = 1;
  53         }
  54       if (!sawcygwin && !strstr (*av, "mingw"))
  55         strcat (*av, CYGWIN_MINGW_SUBDIR);
  56     }
  57 }
  58
  59
  60 static void
  61 set_mingw (void)
  62 {
  63   char *env = getenv ("GCC_CYGWIN_MINGW");
  64   if (env && *env == '1')
  65     add_mingw ();
  66 }