dep.h

   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, 2007 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 3 of the License, or (at your option) any later
  10 version.
  11
  12 GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  14 A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License along with
  17 this program.  If not, see <http://www.gnu.org/licenses/>.  */
  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     const char *name;
  40     const 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     const char *name;
  55   };
  56
  57
  58 struct nameseq *multi_glob (struct nameseq *chain, unsigned int size, int exists_only);
  59 #ifdef VMS
  60 struct nameseq *parse_file_seq ();
  61 #else
  62 struct nameseq *parse_file_seq (char **stringp, int stopchar, unsigned int size, int strip);
  63 #endif
  64 char *tilde_expand (const char *name);
  65
  66 #ifndef NO_ARCHIVES
  67 struct nameseq *ar_glob (const char *arname, const char *member_pattern, unsigned int size);
  68 #endif
  69
  70 #define dep_name(d) ((d)->name == 0 ? (d)->file->name : (d)->name)
  71
  72 struct dep *alloc_dep (void);
  73 void free_dep (struct dep *d);
  74 struct dep *copy_dep_chain (const struct dep *d);
  75 void free_dep_chain (struct dep *d);
  76 void free_ns_chain (struct nameseq *n);
  77 struct dep *read_all_makefiles (const char **makefiles);
  78 int eval_buffer (char *buffer);
  79 int update_goal_chain (struct dep *goals);
  80 void uniquize_deps (struct dep *);