1  /* Prototypes and data structures used for implementing functions for
       2     finding files relative to GCC binaries.
       3     Copyright (C) 1992-2023 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 it under
       8  the terms of the GNU General Public License as published by the Free
       9  Software Foundation; either version 3, or (at your option) any later
      10  version.
      11  
      12  GCC is distributed in the hope that it will be useful, but WITHOUT ANY
      13  WARRANTY; without even the implied warranty of MERCHANTABILITY or
      14  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
      15  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  #ifndef GCC_FILE_FIND_H
      22  #define GCC_FILE_FIND_H
      23  
      24  /* Structure to hold all the directories in which to search for files to
      25     execute.  */
      26  
      27  struct prefix_list
      28  {
      29    const char *prefix;         /* String to prepend to the path.  */
      30    struct prefix_list *next;   /* Next in linked list.  */
      31  };
      32  
      33  struct path_prefix
      34  {
      35    struct prefix_list *plist;  /* List of prefixes to try */
      36    int max_len;                /* Max length of a prefix in PLIST */
      37    const char *name;           /* Name of this list (used in config stuff) */
      38  };
      39  
      40  extern void find_file_set_debug (bool);
      41  extern char *find_a_file (struct path_prefix *, const char *, int);
      42  extern void add_prefix (struct path_prefix *, const char *);
      43  extern void add_prefix_begin (struct path_prefix *, const char *);
      44  extern void prefix_from_env (const char *, struct path_prefix *);
      45  extern void prefix_from_string (const char *, struct path_prefix *);
      46  
      47  #endif /* GCC_FILE_FIND_H */