rule.h

   1 /* Definitions for using pattern rules in 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, 2008, 2009,
   4 2010 Free Software 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
  20 /* Structure used for pattern (implicit) rules.  */
  21
  22 struct rule
  23   {
  24     struct rule *next;
  25     const char **targets;       /* Targets of the rule.  */
  26     unsigned int *lens;         /* Lengths of each target.  */
  27     const char **suffixes;      /* Suffixes (after `%') of each target.  */
  28     struct dep *deps;           /* Dependencies of the rule.  */
  29     struct commands *cmds;      /* Commands to execute.  */
  30     unsigned short num;         /* Number of targets.  */
  31     char terminal;              /* If terminal (double-colon).  */
  32     char in_use;                /* If in use by a parent pattern_search.  */
  33   };
  34
  35 /* For calling install_pattern_rule.  */
  36 struct pspec
  37   {
  38     char *target, *dep, *commands;
  39   };
  40
  41
  42 extern struct rule *pattern_rules;
  43 extern struct rule *last_pattern_rule;
  44 extern unsigned int num_pattern_rules;
  45
  46 extern unsigned int max_pattern_deps;
  47 extern unsigned int max_pattern_targets;
  48 extern unsigned int max_pattern_dep_length;
  49
  50 extern struct file *suffix_file;
  51 extern unsigned int maxsuffix;
  52
  53
  54 void count_implicit_rule_limits (void);
  55 void convert_to_pattern (void);
  56 void install_pattern_rule (struct pspec *p, int terminal);
  57 void create_pattern_rule (const char **targets, const char **target_percents,
  58                           unsigned int num, int terminal, struct dep *deps,
  59                           struct commands *commands, int override);