1 /* Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993
2 Free Software Foundation, Inc.
3 This file is part of GNU Make.
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)
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.
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, 675 Mass Ave, Cambridge, MA 02139, USA. */
19 /* Structure that represents the info on one file
20 that the makefile says how to make.
21 All of these are chained together through `next'. */
28 struct commands
*cmds
; /* Commands to execute for this target */
29 char *stem
; /* Implicit stem, if an implicit
31 struct dep
*also_make
; /* Targets that are made by making this. */
32 time_t last_mtime
; /* File's modtime, if already known. */
33 struct file
*prev
; /* Previous entry for same file name;
34 used when there are multiple double-colon
35 entries for the same file. */
37 /* File that this file was renamed to. After any time that a
38 file could be renamed, call `check_renamed' (below). */
41 /* List of variable sets used for this file. */
42 struct variable_set_list
*variables
;
44 /* Immediate dependent that caused this target to be remade,
45 or nil if there isn't one. */
48 short int update_status
; /* Status of the last attempt to update,
49 or -1 if none has been made. */
51 enum /* State of the commands. */
52 { /* Note: It is important that cs_not_started be zero. */
53 cs_not_started
, /* Not yet started. */
54 cs_deps_running
, /* Dep commands running. */
55 cs_running
, /* Commands running. */
56 cs_finished
/* Commands finished. */
57 } command_state
ENUM_BITFIELD (2);
59 unsigned int double_colon
:1;/* Nonzero for double-colon entry */
60 unsigned int precious
:1; /* Non-0 means don't delete file on quit */
61 unsigned int tried_implicit
:1; /* Nonzero if have searched
62 for implicit rule for making
63 this file; don't search again. */
64 unsigned int updating
:1; /* Nonzero while updating deps of this file */
65 unsigned int updated
:1; /* Nonzero if this file has been remade. */
66 unsigned int is_target
:1; /* Nonzero if file is described as target. */
67 unsigned int cmd_target
:1; /* Nonzero if file was given on cmd line. */
68 unsigned int phony
:1; /* Nonzero if this is a phony file
69 i.e., a dependency of .PHONY. */
70 unsigned int intermediate
:1;/* Nonzero if this is an intermediate file. */
71 unsigned int dontcare
:1; /* Nonzero if no complaint is to be made if
72 this target cannot be remade. */
75 /* Number of intermediate files entered. */
77 extern unsigned int num_intermediates
;
79 extern struct file
*default_goal_file
, *suffix_file
, *default_file
;
82 extern struct file
*lookup_file (), *enter_file ();
83 extern void remove_intermediates (), snap_deps ();
84 extern void rename_file (), file_hash_enter ();
87 extern time_t f_mtime ();
88 #define file_mtime_1(f, v) \
89 ((f)->last_mtime != (time_t) 0 ? (f)->last_mtime : f_mtime ((f), v))
90 #define file_mtime(f) file_mtime_1 ((f), 1)
91 #define file_mtime_no_search(f) file_mtime_1 ((f), 0)
94 #define check_renamed(file) \
95 while ((file)->renamed != 0) (file) = (file)->renamed /* No ; here. */