fixincludes/fixopts.c

   1 /* Handle options that are passed from environment variables.
   2
   3    Copyright (C) 2004 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 "fixlib.h"
  23
  24 #define _ENV_(v,m,n,t)   tCC* v = NULL;
  25 ENV_TABLE
  26 #undef _ENV_
  27
  28 void
  29 initialize_opts (void)
  30 {
  31   static const char var_not_found[] =
  32 #ifndef __STDC__
  33     "fixincl ERROR:  %s environment variable not defined\n"
  34 #else
  35     "fixincl ERROR:  %s environment variable not defined\n"
  36     "each of these must be defined:\n"
  37 # define _ENV_(vv,mm,nn,tt) "\t" nn "  - " tt "\n"
  38   ENV_TABLE
  39 # undef _ENV_
  40 #endif
  41     ;
  42
  43 #define _ENV_(v,m,n,t)   { tSCC var[] = n;  \
  44   v = getenv (var); if (m && (v == NULL)) { \
  45   fprintf (stderr, var_not_found, var);     \
  46   exit (EXIT_FAILURE); } }
  47
  48 ENV_TABLE
  49
  50 #undef _ENV_
  51 }