dep.h

   1 /* Definitions of dependency data structures for GNU Make.
   2 Copyright (C) 1988, 1989, 1991, 1992, 1993, 1996 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, Inc., 59 Temple Place - Suite 330,
  18 Boston, MA 02111-1307, USA.  */
  19
  20 /* Flag bits for the second argument to `read_makefile'.
  21    These flags are saved in the `changed' field of each
  22    `struct dep' in the chain returned by `read_all_makefiles'.  */
  23
  24 #define RM_NO_DEFAULT_GOAL      (1 << 0) /* Do not set default goal.  */
  25 #define RM_INCLUDED             (1 << 1) /* Search makefile search path.  */
  26 #define RM_DONTCARE             (1 << 2) /* No error if it doesn't exist.  */
  27 #define RM_NO_TILDE             (1 << 3) /* Don't expand ~ in file name.  */
  28 #define RM_NOFLAG               0
  29
  30 /* Structure representing one dependency of a file.
  31    Each struct file's `deps' points to a chain of these,
  32    chained through the `next'.
  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     struct file *file;
  41     unsigned int changed : 8;
  42     unsigned int ignore_mtime : 1;
  43     unsigned int staticpattern : 1;
  44     unsigned int need_2nd_expansion : 1;
  45   };
  46
  47
  48 /* Structure used in chains of names, for parsing and globbing.  */
  49
  50 struct nameseq
  51   {
  52     struct nameseq *next;
  53     char *name;
  54   };
  55
  56
  57 extern struct nameseq *multi_glob PARAMS ((struct nameseq *chain, unsigned int size));
  58 #ifdef VMS
  59 extern struct nameseq *parse_file_seq ();
  60 #else
  61 extern struct nameseq *parse_file_seq PARAMS ((char **stringp, int stopchar, unsigned int size, int strip));
  62 #endif
  63 extern char *tilde_expand PARAMS ((char *name));
  64
  65 #ifndef NO_ARCHIVES
  66 extern struct nameseq *ar_glob PARAMS ((char *arname, char *member_pattern, unsigned int size));
  67 #endif
  68
  69 #ifndef iAPX286
  70 #define dep_name(d) ((d)->name == 0 ? (d)->file->name : (d)->name)
  71 #else
  72 /* Buggy compiler can't hack this.  */
  73 extern char *dep_name ();
  74 #endif
  75
  76 extern struct dep *copy_dep_chain PARAMS ((const struct dep *d));
  77 extern void free_dep_chain PARAMS ((struct dep *d));
  78 extern void free_ns_chain PARAMS ((struct nameseq *n));
  79 extern struct dep *read_all_makefiles PARAMS ((char **makefiles));
  80 extern int eval_buffer PARAMS ((char *buffer));
  81 extern int update_goal_chain PARAMS ((struct dep *goals));
  82 extern void uniquize_deps PARAMS ((struct dep *));