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authorRoland McGrath <roland@redhat.com>1991-10-08 20:04:17 +0000
committerRoland McGrath <roland@redhat.com>1991-10-08 20:04:17 +0000
commit6af05c619739b6feae54b3bb58217055f632c8b6 (patch)
treed0915b94eca4be2556e550feeffc7363c4f9952c /file.h
parent42289c5f18281fd14b55b5118839c9e2c36b9c5c (diff)
downloadgunmake-6af05c619739b6feae54b3bb58217055f632c8b6.tar.gz
Initial revision
Diffstat (limited to 'file.h')
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+/* Copyright (C) 1988, 1989, 1990, 1991 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 2, 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 GNU Make; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Structure that represents the info on one file
+ that the makefile says how to make.
+ All of these are chained together through `next'. */
+
+struct file
+ {
+ struct file *next;
+ char *name;
+ struct dep *deps;
+ struct commands *cmds; /* Commands to execute for this target */
+ char *stem; /* Implicit stem, if an implicit
+ rule has been used */
+ struct dep *also_make; /* Targets that are made by making this. */
+ time_t last_mtime; /* File's modtime, if already known. */
+ struct file *prev; /* Previous entry for same file name;
+ used when there are multiple double-colon
+ entries for the same file. */
+
+ /* File that this file was renamed to. After any time that a
+ file could be renamed, call `check_renamed' (below). */
+ struct file *renamed;
+
+ /* List of variable sets used for this file. */
+ struct variable_set_list *variables;
+
+ /* Immediate dependent that caused this target to be remade,
+ or nil if there isn't one. */
+ struct file *parent;
+
+ short int update_status; /* Status of the last attempt to update,
+ or -1 if none has been made. */
+
+ enum /* State of the commands. */
+ { /* Note: It is important that cs_not_started be zero. */
+ cs_not_started, /* Not yet started. */
+ cs_deps_running, /* Dep commands running. */
+ cs_running, /* Commands running. */
+ cs_finished /* Commands finished. */
+ } command_state ENUM_BITFIELD (2);
+
+ unsigned int double_colon:1;/* Nonzero for double-colon entry */
+ unsigned int precious:1; /* Non-0 means don't delete file on quit */
+ unsigned int tried_implicit:1;/* Nonzero if have searched
+ for implicit rule for making
+ this file; don't search again. */
+ unsigned int updating:1; /* Nonzero while updating deps of this file */
+ unsigned int updated:1; /* Nonzero if this file has been remade. */
+ unsigned int is_target:1; /* Nonzero if file is described as target. */
+ unsigned int cmd_target:1; /* Nonzero if file was given on cmd line. */
+ unsigned int phony:1; /* Nonzero if this is a phony file
+ ie, a dependent of .PHONY. */
+ unsigned int intermediate:1;/* Nonzero if this is an intermediate file. */
+ unsigned int dontcare:1; /* Nonzero if no complaint is to be made if
+ this target cannot be remade. */
+ };
+
+/* Number of intermediate files entered. */
+
+extern unsigned int num_intermediates;
+
+extern struct file *default_goal_file, *suffix_file, *default_file;
+
+
+extern struct file *lookup_file (), *enter_file ();
+extern void remove_intermediates (), snap_deps ();
+extern void rename_file ();
+
+
+extern time_t f_mtime ();
+#define file_mtime_1(f, v) \
+ ((f)->last_mtime != (time_t) 0 ? (f)->last_mtime : f_mtime ((f), v))
+#define file_mtime(f) file_mtime_1 ((f), 1)
+#define file_mtime_no_search(f) file_mtime_1 ((f), 0)
+
+
+#define check_renamed(file) \
+ while ((file)->renamed != 0) (file) = (file)->renamed /* No ; here. */