gcc/config/i386/cygwin1.c

   1 /* Helper routines for cygwin-specific command-line parsing.
   2    Contributed by Christopher Faylor (cgf@redhat.com)
   3    Copyright 2003, 2005, 2007, 2008 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 #include "opts.h"
  26 #include <string.h>
  27
  28 void
  29 mingw_scan (unsigned int decoded_options_count,
  30             const struct cl_decoded_option *decoded_options,
  31             const char **spec_machine)
  32 {
  33   unsigned int i;
  34   putenv (xstrdup ("GCC_CYGWIN_MINGW=0"));
  35
  36   for (i = 1; i < decoded_options_count; i++)
  37     switch (decoded_options[i].opt_index)
  38       {
  39       case OPT_mwin32:
  40         if (decoded_options[i].value == 0)
  41           putenv (xstrdup ("GCC_CYGWIN_WIN32=0"));
  42         else
  43           putenv (xstrdup ("GCC_CYGWIN_WIN32=1"));
  44         break;
  45
  46       case OPT_mcygwin:
  47         if (decoded_options[i].value == 0)
  48           {
  49             char *p = strstr (*spec_machine, "-cygwin");
  50             if (p)
  51               {
  52                 int len = p - *spec_machine;
  53                 char *s = XNEWVEC (char, strlen (*spec_machine) + 3);
  54                 memcpy (s, *spec_machine, len);
  55                 strcpy (s + len, "-mingw32");
  56                 *spec_machine = s;
  57               }
  58             putenv (xstrdup ("GCC_CYGWIN_MINGW=1"));
  59           }
  60         break;
  61       }
  62   return;
  63 }