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 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 <string.h>
  26
  27 void
  28 mingw_scan (int argc ATTRIBUTE_UNUSED,
  29             const char *const *argv,
  30             char **spec_machine)
  31 {
  32   putenv (xstrdup ("GCC_CYGWIN_MINGW=0"));
  33
  34   while (*++argv)
  35     if (strcmp (*argv, "-mno-win32") == 0)
  36       putenv (xstrdup ("GCC_CYGWIN_WIN32=0"));
  37     else if (strcmp (*argv, "-mwin32") == 0)
  38       putenv (xstrdup ("GCC_CYGWIN_WIN32=1"));
  39     else if (strcmp (*argv, "-mno-cygwin") == 0)
  40       {
  41         char *p = strstr (*spec_machine, "-cygwin");
  42         if (p)
  43           {
  44             int len = p - *spec_machine;
  45             char *s = xmalloc (strlen (*spec_machine) + 3);
  46             memcpy (s, *spec_machine, len);
  47             strcpy (s + len, "-mingw32");
  48             *spec_machine = s;
  49           }
  50         putenv (xstrdup ("GCC_CYGWIN_MINGW=1"));
  51       }
  52   return;
  53 }