1/* Definitions of dependency data structures for GNU Make.
2Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
31998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
4Foundation, Inc.
5This file is part of GNU Make.
6
7GNU Make is free software; you can redistribute it and/or modify it under the
8terms of the GNU General Public License as published by the Free Software
9Foundation; either version 2, or (at your option) any later version.
10
11GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
14
15You should have received a copy of the GNU General Public License along with
16GNU Make; see the file COPYING.  If not, write to the Free Software
17Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.  */
18
19/* Flag bits for the second argument to `read_makefile'.
20   These flags are saved in the `changed' field of each
21   `struct dep' in the chain returned by `read_all_makefiles'.  */
22
23#define RM_NO_DEFAULT_GOAL	(1 << 0) /* Do not set default goal.  */
24#define RM_INCLUDED		(1 << 1) /* Search makefile search path.  */
25#define RM_DONTCARE		(1 << 2) /* No error if it doesn't exist.  */
26#define RM_NO_TILDE		(1 << 3) /* Don't expand ~ in file name.  */
27#define RM_NOFLAG		0
28
29/* Structure representing one dependency of a file.
30   Each struct file's `deps' points to a chain of these,
31   chained through the `next'. `stem' is the stem for this
32   dep line of static pattern rule or NULL.
33
34   Note that the first two words of this match a struct nameseq.  */
35
36struct dep
37  {
38    struct dep *next;
39    char *name;
40    char *stem;
41    struct file *file;
42    unsigned int changed : 8;
43    unsigned int ignore_mtime : 1;
44    unsigned int staticpattern : 1;
45    unsigned int need_2nd_expansion : 1;
46  };
47
48
49/* Structure used in chains of names, for parsing and globbing.  */
50
51struct nameseq
52  {
53    struct nameseq *next;
54    char *name;
55  };
56
57
58extern struct nameseq *multi_glob PARAMS ((struct nameseq *chain, unsigned int size));
59#ifdef VMS
60extern struct nameseq *parse_file_seq ();
61#else
62extern struct nameseq *parse_file_seq PARAMS ((char **stringp, int stopchar, unsigned int size, int strip));
63#endif
64extern char *tilde_expand PARAMS ((char *name));
65
66#ifndef NO_ARCHIVES
67extern struct nameseq *ar_glob PARAMS ((char *arname, char *member_pattern, unsigned int size));
68#endif
69
70#ifndef	iAPX286
71#define dep_name(d) ((d)->name == 0 ? (d)->file->name : (d)->name)
72#else
73/* Buggy compiler can't hack this.  */
74extern char *dep_name ();
75#endif
76
77extern struct dep *alloc_dep PARAMS ((void));
78extern void free_dep PARAMS ((struct dep *d));
79extern struct dep *copy_dep_chain PARAMS ((const struct dep *d));
80extern void free_dep_chain PARAMS ((struct dep *d));
81extern void free_ns_chain PARAMS ((struct nameseq *n));
82extern struct dep *read_all_makefiles PARAMS ((char **makefiles));
83extern int eval_buffer PARAMS ((char *buffer));
84extern int update_goal_chain PARAMS ((struct dep *goals));
85extern void uniquize_deps PARAMS ((struct dep *));
86