/* Definitions for using pattern rules in GNU Make.
Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
2010 Free Software Foundation, Inc.
This file is part of GNU Make.

GNU Make is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3 of the License, or (at your option) any later
version.

GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with
this program.  If not, see <http://www.gnu.org/licenses/>.  */


/* Structure used for pattern (implicit) rules.  */

struct rule
  {
    struct rule *next;
    const char **targets;	/* Targets of the rule.  */
    unsigned int *lens;		/* Lengths of each target.  */
    const char **suffixes;	/* Suffixes (after `%') of each target.  */
    struct dep *deps;		/* Dependencies of the rule.  */
    struct commands *cmds;	/* Commands to execute.  */
    unsigned short num;         /* Number of targets.  */
    char terminal;		/* If terminal (double-colon).  */
    char in_use;		/* If in use by a parent pattern_search.  */
  };

/* For calling install_pattern_rule.  */
struct pspec
  {
    char *target, *dep, *commands;
  };


extern struct rule *pattern_rules;
extern struct rule *last_pattern_rule;
extern unsigned int num_pattern_rules;

extern unsigned int max_pattern_deps;
extern unsigned int max_pattern_targets;
extern unsigned int max_pattern_dep_length;

extern struct file *suffix_file;
extern unsigned int maxsuffix;


void count_implicit_rule_limits (void);
void convert_to_pattern (void);
void install_pattern_rule (struct pspec *p, int terminal);
void create_pattern_rule (const char **targets, const char **target_percents,
                          unsigned int num, int terminal, struct dep *deps,
                          struct commands *commands, int override);