fixincludes/fixopts.c

   1 /* Handle options that are passed from environment variables.
   2
   3    Copyright (C) 2004, 2009, 2012 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 "fixlib.h"
  22
  23 te_verbose  verbose_level = VERB_PROGRESS;
  24
  25 fixinc_mode_t fixinc_mode = TESTING_OFF;
  26
  27 #define _ENV_(v,m,n,t) char const * v = NULL;
  28 ENV_TABLE
  29 #undef _ENV_
  30
  31 static void
  32 show_not_def (char const * vname)
  33 {
  34   static const char var_not_found[] =
  35     "fixincl ERROR:  %s environment variable not defined\n"
  36     "each of these must be defined:\n";
  37   static char const not_found_var[] = "\t%s\n";
  38
  39   fprintf (stderr, var_not_found, vname);
  40 # define _ENV_(vv,mm,nn,tt) \
  41   if (mm) fprintf (stderr, not_found_var, nn);
  42   ENV_TABLE
  43 # undef _ENV_
  44
  45   exit (EXIT_FAILURE);
  46 }
  47
  48 void
  49 initialize_opts (void)
  50 {
  51 #define _ENV_(v,m,n,t)   {                      \
  52     static char const var[] = n;                \
  53     v = getenv (var);                           \
  54     if (m && (v == NULL)) show_not_def (var);   \
  55   }
  56
  57   ENV_TABLE;
  58 #undef _ENV_
  59
  60   if ((pz_test_mode != NULL) && (strcmp (pz_test_mode, "true") == 0))
  61     fixinc_mode = TESTING_ON;
  62 }