2c3632d14f
Lots of code refactoring, simplification and cleanup. Lots of new unit-tests providing much higher code coverage. All courtesy of rillig at netbsd. Other significant changes: o new read-only variable .SHELL which provides the path of the shell used to run scripts (as defined by the .SHELL target). o variable parsing detects more errors. o new debug option -dl: LINT mode, does the equivalent of := for all variable assignments so that file and line number are reported for variable parse errors.
596 lines
20 KiB
C
596 lines
20 KiB
C
/* $NetBSD: make.h,v 1.137 2020/09/02 23:42:58 rillig Exp $ */
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/*
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* Copyright (c) 1988, 1989, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam de Boor.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)make.h 8.3 (Berkeley) 6/13/95
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*/
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/*
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* Copyright (c) 1989 by Berkeley Softworks
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam de Boor.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)make.h 8.3 (Berkeley) 6/13/95
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*/
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/*-
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* make.h --
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* The global definitions for pmake
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*/
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#ifndef MAKE_MAKE_H
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#define MAKE_MAKE_H
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/stat.h>
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#include <assert.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#else
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#include <strings.h>
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#endif
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#include <unistd.h>
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#include <sys/cdefs.h>
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#ifndef FD_CLOEXEC
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#define FD_CLOEXEC 1
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#endif
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#if defined(__GNUC__)
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#define MAKE_GNUC_PREREQ(x, y) \
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((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \
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(__GNUC__ > (x)))
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#else /* defined(__GNUC__) */
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#define MAKE_GNUC_PREREQ(x, y) 0
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#endif /* defined(__GNUC__) */
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#if MAKE_GNUC_PREREQ(2, 7)
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#define MAKE_ATTR_UNUSED __attribute__((__unused__))
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#else
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#define MAKE_ATTR_UNUSED /* delete */
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#endif
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#if MAKE_GNUC_PREREQ(2, 5)
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#define MAKE_ATTR_DEAD __attribute__((__noreturn__))
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#elif defined(__GNUC__)
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#define MAKE_ATTR_DEAD __volatile
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#else
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#define MAKE_ATTR_DEAD /* delete */
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#endif
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#if MAKE_GNUC_PREREQ(2, 7)
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#define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) \
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__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
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#else
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#define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) /* delete */
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#endif
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/*
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* A boolean type is defined as an integer, not an enum, for historic reasons.
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* The only allowed values are the constants TRUE and FALSE (1 and 0).
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*/
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#ifdef USE_DOUBLE_BOOLEAN
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/* During development, to find type mismatches in function declarations. */
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typedef double Boolean;
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#elif defined(USE_UCHAR_BOOLEAN)
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/* During development, to find code that depends on the exact value of TRUE or
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* that stores other values in Boolean variables. */
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typedef unsigned char Boolean;
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#define TRUE ((unsigned char)0xFF)
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#define FALSE ((unsigned char)0x00)
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#elif defined(USE_ENUM_BOOLEAN)
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typedef enum { FALSE, TRUE} Boolean;
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#else
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typedef int Boolean;
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif /* TRUE */
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#ifndef FALSE
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#define FALSE 0
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#endif /* FALSE */
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#include "lst.h"
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#include "enum.h"
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#include "hash.h"
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#include "make-conf.h"
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#include "buf.h"
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#include "make_malloc.h"
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/*
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* some vendors don't have this --sjg
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*/
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#if defined(S_IFDIR) && !defined(S_ISDIR)
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# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
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#endif
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#if defined(sun) && (defined(__svr4__) || defined(__SVR4))
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#define POSIX_SIGNALS
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#endif
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typedef enum {
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UNMADE, /* Not examined yet */
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DEFERRED, /* Examined once (building child) */
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REQUESTED, /* on toBeMade list */
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BEINGMADE, /* Target is already being made.
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* Indicates a cycle in the graph. */
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MADE, /* Was out-of-date and has been made */
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UPTODATE, /* Was already up-to-date */
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ERROR, /* An error occurred while it was being
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* made (used only in compat mode) */
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ABORTED /* The target was aborted due to an error
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* making an inferior (compat). */
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} GNodeMade;
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/* The OP_ constants are used when parsing a dependency line as a way of
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* communicating to other parts of the program the way in which a target
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* should be made.
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*
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* These constants are bitwise-OR'ed together and placed in the 'type' field
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* of each node. Any node that has a 'type' field which satisfies the OP_NOP
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* function was never never on the left-hand side of an operator, though it
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* may have been on the right-hand side... */
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typedef enum {
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/* Execution of commands depends on children (:) */
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OP_DEPENDS = 1 << 0,
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/* Always execute commands (!) */
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OP_FORCE = 1 << 1,
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/* Execution of commands depends on children per line (::) */
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OP_DOUBLEDEP = 1 << 2,
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OP_OPMASK = OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP,
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/* Don't care if the target doesn't exist and can't be created */
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OP_OPTIONAL = 1 << 3,
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/* Use associated commands for parents */
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OP_USE = 1 << 4,
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/* Target is never out of date, but always execute commands anyway.
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* Its time doesn't matter, so it has none...sort of */
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OP_EXEC = 1 << 5,
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/* Ignore errors when creating the node */
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OP_IGNORE = 1 << 6,
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/* Don't remove the target when interrupted */
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OP_PRECIOUS = 1 << 7,
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/* Don't echo commands when executed */
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OP_SILENT = 1 << 8,
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/* Target is a recursive make so its commands should always be executed
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* when it is out of date, regardless of the state of the -n or -t flags */
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OP_MAKE = 1 << 9,
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/* Target is out-of-date only if any of its children was out-of-date */
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OP_JOIN = 1 << 10,
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/* Assume the children of the node have been already made */
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OP_MADE = 1 << 11,
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/* Special .BEGIN, .END, .INTERRUPT */
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OP_SPECIAL = 1 << 12,
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/* Like .USE, only prepend commands */
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OP_USEBEFORE = 1 << 13,
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/* The node is invisible to its parents. I.e. it doesn't show up in the
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* parents' local variables. */
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OP_INVISIBLE = 1 << 14,
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/* The node is exempt from normal 'main target' processing in parse.c */
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OP_NOTMAIN = 1 << 15,
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/* Not a file target; run always */
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OP_PHONY = 1 << 16,
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/* Don't search for file in the path */
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OP_NOPATH = 1 << 17,
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/* .WAIT phony node */
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OP_WAIT = 1 << 18,
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/* .NOMETA do not create a .meta file */
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OP_NOMETA = 1 << 19,
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/* .META we _do_ want a .meta file */
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OP_META = 1 << 20,
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/* Do not compare commands in .meta file */
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OP_NOMETA_CMP = 1 << 21,
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/* Possibly a submake node */
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OP_SUBMAKE = 1 << 22,
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/* Attributes applied by PMake */
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/* The node is a transformation rule */
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OP_TRANSFORM = 1 << 31,
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/* Target is a member of an archive */
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OP_MEMBER = 1 << 30,
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/* Target is a library */
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OP_LIB = 1 << 29,
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/* Target is an archive construct */
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OP_ARCHV = 1 << 28,
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/* Target has all the commands it should. Used when parsing to catch
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* multiple commands for a target. */
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OP_HAS_COMMANDS = 1 << 27,
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/* Saving commands on .END (Compat) */
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OP_SAVE_CMDS = 1 << 26,
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/* Already processed by Suff_FindDeps */
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OP_DEPS_FOUND = 1 << 25,
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/* Node found while expanding .ALLSRC */
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OP_MARK = 1 << 24
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} GNodeType;
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typedef enum {
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REMAKE = 0x0001, /* this target needs to be (re)made */
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CHILDMADE = 0x0002, /* children of this target were made */
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FORCE = 0x0004, /* children don't exist, and we pretend made */
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DONE_WAIT = 0x0008, /* Set by Make_ProcessWait() */
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DONE_ORDER = 0x0010, /* Build requested by .ORDER processing */
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FROM_DEPEND = 0x0020, /* Node created from .depend */
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DONE_ALLSRC = 0x0040, /* We do it once only */
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CYCLE = 0x1000, /* Used by MakePrintStatus */
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DONECYCLE = 0x2000, /* Used by MakePrintStatus */
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INTERNAL = 0x4000 /* Internal use only */
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} GNodeFlags;
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/* A graph node represents a target that can possibly be made, including its
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* relation to other targets and a lot of other details. */
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typedef struct GNode {
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/* The target's name, such as "clean" or "make.c" */
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char *name;
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/* The unexpanded name of a .USE node */
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char *uname;
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/* The full pathname of the file belonging to the target.
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* XXX: What about .PHONY targets? These don't have an associated path. */
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char *path;
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/* The type of operator used to define the sources (see the OP flags below).
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* XXX: This looks like a wild mixture of type and flags. */
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GNodeType type;
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/* whether it is involved in this invocation of make */
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GNodeFlags flags;
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/* The state of processing on this node */
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GNodeMade made;
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int unmade; /* The number of unmade children */
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time_t mtime; /* Its modification time */
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struct GNode *cmgn; /* The youngest child */
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/* The GNodes for which this node is an implied source. May be empty.
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* For example, when there is an inference rule for .c.o, the node for
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* file.c has the node for file.o in this list. */
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Lst implicitParents;
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/* Other nodes of the same name for the :: operator. */
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Lst cohorts;
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/* The nodes that depend on this one, or in other words, the nodes for
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* which this is a source. */
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Lst parents;
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/* The nodes on which this one depends. */
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Lst children;
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/* .ORDER nodes we need made. The nodes that must be made (if they're
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* made) before this node can be made, but that do not enter into the
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* datedness of this node. */
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Lst order_pred;
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/* .ORDER nodes who need us. The nodes that must be made (if they're made
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* at all) after this node is made, but that do not depend on this node,
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* in the normal sense. */
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Lst order_succ;
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/* #n for this cohort */
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char cohort_num[8];
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/* The number of unmade instances on the cohorts list */
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int unmade_cohorts;
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/* Pointer to the first instance of a '::' node; only set when on a
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* cohorts list */
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struct GNode *centurion;
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/* Last time (sequence number) we tried to make this node */
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unsigned int checked;
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/* The "local" variables that are specific to this target and this target
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* only, such as $@, $<, $?. */
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Hash_Table context;
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/* The commands to be given to a shell to create this target. */
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Lst commands;
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/* Suffix for the node (determined by Suff_FindDeps and opaque to everyone
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* but the Suff module) */
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struct Suff *suffix;
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/* filename where the GNode got defined */
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const char *fname;
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/* line number where the GNode got defined */
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int lineno;
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} GNode;
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#define NoExecute(gn) ((gn->type & OP_MAKE) ? noRecursiveExecute : noExecute)
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/*
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* OP_NOP will return TRUE if the node with the given type was not the
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* object of a dependency operator
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*/
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#define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000)
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#define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM)
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/*
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* The TARG_ constants are used when calling the Targ_FindNode and
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* Targ_FindList functions in targ.c. They simply tell the functions what to
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* do if the desired node(s) is (are) not found. If the TARG_CREATE constant
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* is given, a new, empty node will be created for the target, placed in the
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* table of all targets and its address returned. If TARG_NOCREATE is given,
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* a NULL pointer will be returned.
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*/
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#define TARG_NOCREATE 0x00 /* don't create it */
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#define TARG_CREATE 0x01 /* create node if not found */
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#define TARG_NOHASH 0x02 /* don't look in/add to hash table */
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/*
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* Error levels for parsing. PARSE_FATAL means the process cannot continue
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* once the makefile has been parsed. PARSE_WARNING means it can. Passed
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* as the first argument to Parse_Error.
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*/
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#define PARSE_INFO 3
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#define PARSE_WARNING 2
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#define PARSE_FATAL 1
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/*
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* Values returned by Cond_Eval.
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*/
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typedef enum {
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COND_PARSE, /* Parse the next lines */
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COND_SKIP, /* Skip the next lines */
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COND_INVALID /* Not a conditional statement */
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} CondEvalResult;
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/*
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* Definitions for the "local" variables. Used only for clarity.
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*/
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#define TARGET "@" /* Target of dependency */
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#define OODATE "?" /* All out-of-date sources */
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#define ALLSRC ">" /* All sources */
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#define IMPSRC "<" /* Source implied by transformation */
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#define PREFIX "*" /* Common prefix */
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#define ARCHIVE "!" /* Archive in "archive(member)" syntax */
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#define MEMBER "%" /* Member in "archive(member)" syntax */
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#define FTARGET "@F" /* file part of TARGET */
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#define DTARGET "@D" /* directory part of TARGET */
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#define FIMPSRC "<F" /* file part of IMPSRC */
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#define DIMPSRC "<D" /* directory part of IMPSRC */
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#define FPREFIX "*F" /* file part of PREFIX */
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#define DPREFIX "*D" /* directory part of PREFIX */
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/*
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* Global Variables
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*/
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extern Lst create; /* The list of target names specified on the
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* command line. used to resolve #if
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* make(...) statements */
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extern Lst dirSearchPath; /* The list of directories to search when
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* looking for targets */
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extern Boolean compatMake; /* True if we are make compatible */
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extern Boolean ignoreErrors; /* True if should ignore all errors */
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extern Boolean beSilent; /* True if should print no commands */
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extern Boolean noExecute; /* True if should execute nothing */
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extern Boolean noRecursiveExecute; /* True if should execute nothing */
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extern Boolean allPrecious; /* True if every target is precious */
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extern Boolean deleteOnError; /* True if failed targets should be deleted */
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extern Boolean keepgoing; /* True if should continue on unaffected
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* portions of the graph when have an error
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* in one portion */
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extern Boolean touchFlag; /* TRUE if targets should just be 'touched'
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* if out of date. Set by the -t flag */
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extern Boolean queryFlag; /* TRUE if we aren't supposed to really make
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* anything, just see if the targets are out-
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* of-date */
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extern Boolean doing_depend; /* TRUE if processing .depend */
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extern Boolean checkEnvFirst; /* TRUE if environment should be searched for
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* variables before the global context */
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extern Boolean parseWarnFatal; /* TRUE if makefile parsing warnings are
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* treated as errors */
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extern Boolean varNoExportEnv; /* TRUE if we should not export variables
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* set on the command line to the env. */
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extern GNode *DEFAULT; /* .DEFAULT rule */
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extern GNode *VAR_INTERNAL; /* Variables defined internally by make
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* which should not override those set by
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* makefiles.
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*/
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extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g
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* in the Makefile itself */
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extern GNode *VAR_CMD; /* Variables defined on the command line */
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extern char var_Error[]; /* Value returned by Var_Parse when an error
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* is encountered. It actually points to
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* an empty string, so naive callers needn't
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* worry about it. */
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extern time_t now; /* The time at the start of this whole
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* process */
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extern Boolean oldVars; /* Do old-style variable substitution */
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extern Lst sysIncPath; /* The system include path. */
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extern Lst defIncPath; /* The default include path. */
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extern char curdir[]; /* Startup directory */
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extern char *progname; /* The program name */
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extern char *makeDependfile; /* .depend */
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extern char **savedEnv; /* if we replaced environ this will be non-NULL */
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extern int makelevel;
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/*
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* We cannot vfork() in a child of vfork().
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* Most systems do not enforce this but some do.
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*/
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#define vFork() ((getpid() == myPid) ? vfork() : fork())
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extern pid_t myPid;
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#define MAKEFLAGS ".MAKEFLAGS"
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#define MAKEOVERRIDES ".MAKEOVERRIDES"
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#define MAKE_JOB_PREFIX ".MAKE.JOB.PREFIX" /* prefix for job target output */
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#define MAKE_EXPORTED ".MAKE.EXPORTED" /* variables we export */
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#define MAKE_MAKEFILES ".MAKE.MAKEFILES" /* all the makefiles we read */
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#define MAKE_LEVEL ".MAKE.LEVEL" /* recursion level */
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#define MAKEFILE_PREFERENCE ".MAKE.MAKEFILE_PREFERENCE"
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#define MAKE_DEPENDFILE ".MAKE.DEPENDFILE" /* .depend */
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#define MAKE_MODE ".MAKE.MODE"
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#ifndef MAKE_LEVEL_ENV
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# define MAKE_LEVEL_ENV "MAKELEVEL"
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#endif
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/*
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|
* debug control:
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|
* There is one bit per module. It is up to the module what debug
|
|
* information to print.
|
|
*/
|
|
extern FILE *debug_file; /* Output is written here - default stderr */
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extern int debug;
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|
#define DEBUG_ARCH 0x00001
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#define DEBUG_COND 0x00002
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|
#define DEBUG_DIR 0x00004
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|
#define DEBUG_GRAPH1 0x00008
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|
#define DEBUG_GRAPH2 0x00010
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|
#define DEBUG_JOB 0x00020
|
|
#define DEBUG_MAKE 0x00040
|
|
#define DEBUG_SUFF 0x00080
|
|
#define DEBUG_TARG 0x00100
|
|
#define DEBUG_VAR 0x00200
|
|
#define DEBUG_FOR 0x00400
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|
#define DEBUG_SHELL 0x00800
|
|
#define DEBUG_ERROR 0x01000
|
|
#define DEBUG_LOUD 0x02000
|
|
#define DEBUG_META 0x04000
|
|
#define DEBUG_HASH 0x08000
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|
|
|
#define DEBUG_GRAPH3 0x10000
|
|
#define DEBUG_SCRIPT 0x20000
|
|
#define DEBUG_PARSE 0x40000
|
|
#define DEBUG_CWD 0x80000
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|
|
#define DEBUG_LINT 0x100000
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|
|
#define CONCAT(a,b) a##b
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|
|
#define DEBUG(module) (debug & CONCAT(DEBUG_,module))
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|
|
#include "nonints.h"
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|
|
|
int Make_TimeStamp(GNode *, GNode *);
|
|
Boolean Make_OODate(GNode *);
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|
void Make_ExpandUse(Lst);
|
|
time_t Make_Recheck(GNode *);
|
|
void Make_HandleUse(GNode *, GNode *);
|
|
void Make_Update(GNode *);
|
|
void Make_DoAllVar(GNode *);
|
|
Boolean Make_Run(Lst);
|
|
int dieQuietly(GNode *, int);
|
|
void PrintOnError(GNode *, const char *);
|
|
void Main_ExportMAKEFLAGS(Boolean);
|
|
Boolean Main_SetObjdir(const char *, ...) MAKE_ATTR_PRINTFLIKE(1, 2);
|
|
int mkTempFile(const char *, char **);
|
|
int str2Lst_Append(Lst, char *, const char *);
|
|
void GNode_FprintDetails(FILE *, const char *, const GNode *, const char *);
|
|
|
|
#ifdef __GNUC__
|
|
#define UNCONST(ptr) ({ \
|
|
union __unconst { \
|
|
const void *__cp; \
|
|
void *__p; \
|
|
} __d; \
|
|
__d.__cp = ptr, __d.__p; })
|
|
#else
|
|
#define UNCONST(ptr) (void *)(ptr)
|
|
#endif
|
|
|
|
#ifndef MIN
|
|
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
|
|
#endif
|
|
#ifndef MAX
|
|
#define MAX(a, b) (((a) > (b)) ? (a) : (b))
|
|
#endif
|
|
|
|
/* At least GNU/Hurd systems lack hardcoded MAXPATHLEN/PATH_MAX */
|
|
#ifdef HAVE_LIMITS_H
|
|
#include <limits.h>
|
|
#endif
|
|
#ifndef MAXPATHLEN
|
|
#define MAXPATHLEN BMAKE_PATH_MAX
|
|
#endif
|
|
#ifndef PATH_MAX
|
|
#define PATH_MAX MAXPATHLEN
|
|
#endif
|
|
|
|
#if defined(SYSV)
|
|
#define KILLPG(pid, sig) kill(-(pid), (sig))
|
|
#else
|
|
#define KILLPG(pid, sig) killpg((pid), (sig))
|
|
#endif
|
|
|
|
#endif /* MAKE_MAKE_H */
|