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 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 *));