fixopts.c revision 1.1
1/* Handle options that are passed from environment variables. 2 3 Copyright (C) 2004, 2009 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#include "fixlib.h" 22 23#define _ENV_(v,m,n,t) tCC* v = NULL; 24ENV_TABLE 25#undef _ENV_ 26 27void 28initialize_opts (void) 29{ 30 static const char var_not_found[] = 31#ifndef __STDC__ 32 "fixincl ERROR: %s environment variable not defined\n" 33#else 34 "fixincl ERROR: %s environment variable not defined\n" 35 "each of these must be defined:\n" 36# define _ENV_(vv,mm,nn,tt) "\t" nn " - " tt "\n" 37 ENV_TABLE 38# undef _ENV_ 39#endif 40 ; 41 42#define _ENV_(v,m,n,t) { tSCC var[] = n; \ 43 v = getenv (var); if (m && (v == NULL)) { \ 44 fprintf (stderr, var_not_found, var); \ 45 exit (EXIT_FAILURE); } } 46 47ENV_TABLE 48 49#undef _ENV_ 50} 51