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After reading Makefile and all the files that are included using .include or .sinclude directives (source Makefiles) make considers each source Makefile as a target and tries to rebuild it. Both explicit and implicit rules are checked and all source Makefiles are updated if necessary. If any of the source Makefiles were rebuilt, make restarts from clean state. To prevent infinite loops the following source Makefile targets are ignored: - :: targets that have no prerequisites but have commands - ! targets - targets that have .PHONY or .EXEC attributes - targets without prerequisites and without commands When remaking a source Makefile options -t (touch target), -q (query mode), and -n (no exec) do not take effect, unless source Makefile is specified explicitly as a target in make command line. Additionally, system makefiles and .depend are not considered as a Makefiles that can be rebuilt. Reviewed by: harti
74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*-
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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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* 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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* @(#)make.h 8.3 (Berkeley) 6/13/95
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* $FreeBSD$
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*/
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#ifndef make_h_a91074b9
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#define make_h_a91074b9
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/**
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* make.h
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* The global definitions for make
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*/
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#include "util.h"
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struct GNode;
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struct Lst;
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struct Buffer;
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/*
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* Warning flags
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*/
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enum {
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WARN_DIRSYNTAX = 0x0001, /* syntax errors in directives */
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};
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int Make_TimeStamp(struct GNode *, struct GNode *);
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Boolean Make_OODate(struct GNode *);
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int Make_HandleUse(struct GNode *, struct GNode *);
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void Make_Update(struct GNode *);
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void Make_DoAllVar(struct GNode *);
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Boolean Make_Run(struct Lst *);
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void Main_ParseArgLine(char *, int);
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int Main_ParseWarn(const char *, int);
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void Main_AddSourceMakefile(const char *);
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#endif /* make_h_a91074b9 */
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