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1 /* Handle options that are passed from environment variables.
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2
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3 Copyright (C) 2004, 2009 Free Software Foundation, Inc.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify
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8 it under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful,
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 GNU General Public License for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with GCC; see the file COPYING3. If not see
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19 <http://www.gnu.org/licenses/>. */
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20
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21 #include "fixlib.h"
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22
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23 #define _ENV_(v,m,n,t) tCC* v = NULL;
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24 ENV_TABLE
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25 #undef _ENV_
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26
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27 void
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28 initialize_opts (void)
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29 {
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30 static const char var_not_found[] =
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31 #ifndef __STDC__
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32 "fixincl ERROR: %s environment variable not defined\n"
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33 #else
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34 "fixincl ERROR: %s environment variable not defined\n"
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35 "each of these must be defined:\n"
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36 # define _ENV_(vv,mm,nn,tt) "\t" nn " - " tt "\n"
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37 ENV_TABLE
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38 # undef _ENV_
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39 #endif
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40 ;
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41
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42 #define _ENV_(v,m,n,t) { tSCC var[] = n; \
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43 v = getenv (var); if (m && (v == NULL)) { \
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44 fprintf (stderr, var_not_found, var); \
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45 exit (EXIT_FAILURE); } }
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46
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47 ENV_TABLE
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48
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49 #undef _ENV_
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50 }
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