1 /* Definitions of dependency data structures for GNU Make.
2 Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
3 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
4 Foundation, Inc.
5 This file is part of GNU Make.
6 
7 GNU Make is free software; you can redistribute it and/or modify it under the
8 terms of the GNU General Public License as published by the Free Software
9 Foundation; either version 2, or (at your option) any later version.
10 
11 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
13 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
14 
15 You should have received a copy of the GNU General Public License along with
16 GNU Make; see the file COPYING.  If not, write to the Free Software
17 Foundation, 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 
36 struct 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 
51 struct nameseq
52   {
53     struct nameseq *next;
54     char *name;
55   };
56 
57 
58 extern struct nameseq *multi_glob PARAMS ((struct nameseq *chain, unsigned int size));
59 #ifdef VMS
60 extern struct nameseq *parse_file_seq ();
61 #else
62 extern struct nameseq *parse_file_seq PARAMS ((char **stringp, int stopchar, unsigned int size, int strip));
63 #endif
64 extern char *tilde_expand PARAMS ((char *name));
65 
66 #ifndef NO_ARCHIVES
67 extern 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.  */
74 extern char *dep_name ();
75 #endif
76 
77 extern struct dep *alloc_dep PARAMS ((void));
78 extern void free_dep PARAMS ((struct dep *d));
79 extern struct dep *copy_dep_chain PARAMS ((const struct dep *d));
80 extern void free_dep_chain PARAMS ((struct dep *d));
81 extern void free_ns_chain PARAMS ((struct nameseq *n));
82 extern struct dep *read_all_makefiles PARAMS ((char **makefiles));
83 extern int eval_buffer PARAMS ((char *buffer));
84 extern int update_goal_chain PARAMS ((struct dep *goals));
85 extern void uniquize_deps PARAMS ((struct dep *));
86