dep.h

   1 /* Definitions of dependency data structures for GNU Make.
   2 Copyright (C) 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   3 This file is part of GNU Make.
   4
   5 GNU Make is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2, or (at your option)
   8 any later version.
   9
  10 GNU Make is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with GNU Make; see the file COPYING.  If not, write to
  17 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
  18
  19 /* Structure representing one dependency of a file.
  20    Each struct file's `deps' points to a chain of these,
  21    chained through the `next'.
  22
  23    Note that the first two words of this match a struct nameseq.  */
  24
  25 struct dep
  26   {
  27     struct dep *next;
  28     char *name;
  29     struct file *file;
  30     int changed;
  31   };
  32
  33
  34 /* Structure used in chains of names, for parsing and globbing.  */
  35
  36 struct nameseq
  37   {
  38     struct nameseq *next;
  39     char *name;
  40   };
  41
  42
  43 extern struct nameseq *multi_glob (), *parse_file_seq ();
  44 extern char *tilde_expand ();
  45
  46 #ifndef NO_ARCHIVES
  47 extern struct nameseq *ar_glob ();
  48 #endif
  49
  50 #ifndef iAPX286
  51 #define dep_name(d) ((d)->name == 0 ? (d)->file->name : (d)->name)
  52 #else
  53 /* Buggy compiler can't hack this.  */
  54 extern char *dep_name ();
  55 #endif
  56
  57 extern struct dep *read_all_makefiles ();
  58
  59 /* Flag bits for the second argument to `read_makefile'.
  60    These flags are saved in the `changed' field of each
  61    `struct dep' in the chain returned by `read_all_makefiles'.  */
  62 #define RM_NO_DEFAULT_GOAL      (1 << 0) /* Do not set default goal.  */
  63 #define RM_INCLUDED             (1 << 1) /* Search makefile search path.  */
  64 #define RM_DONTCARE             (1 << 2) /* No error if it doesn't exist.  */
  65 #define RM_NO_TILDE             (1 << 3) /* Don't expand ~ in file name.  */
  66 #define RM_NOFLAG               0