jdk/make/common/CancelImplicits.gmk
author duke
Sat, 01 Dec 2007 00:00:00 +0000
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#
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# Copyright 1998-1999 Sun Microsystems, Inc.  All Rights Reserved.
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# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#
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# This code is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License version 2 only, as
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# published by the Free Software Foundation.  Sun designates this
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# particular file as subject to the "Classpath" exception as provided
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# by Sun in the LICENSE file that accompanied this code.
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#
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# This code is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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# version 2 for more details (a copy is included in the LICENSE file that
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# accompanied this code).
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#
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# You should have received a copy of the GNU General Public License version
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# 2 along with this work; if not, write to the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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# CA 95054 USA or visit www.sun.com if you need additional information or
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# have any questions.
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#
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#
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# Cancel some GNU make implicit rules.  This causes far fewer stats
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# (crucial in incremental builds, when all that is being done is stats -- I
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# notice upto 20% speedup on local disk). See sections "10.2 Catalogue of
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# Implicit Rules" and "10.5.6 Canceling Implicit Rules" in make.dvi; see
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# also the output of gnumake -p.
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#
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# CAUTION! This is the first thing included in our makefiles, so you must
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# not add any targets here.  Canceling %.f: %.F doesn't make any sense
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# because we don't have any targets ending with .f.
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#
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#
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# We don't make binaries directly from .{source} files with implicit
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# rules, so disable all of them.
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#
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ifndef USE_IMPLICITS
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%: %.o
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%: %.obj
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%: %.dll
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%: %.c
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%: %.cc
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%: %.C
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%: %.p
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%: %.f
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%: %.s
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%: %.F
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%: %.r
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%: %.S
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%: %.mod
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%: %.sh
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endif
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#
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# If you are using RCS, you must set the variable USE_RCS at the make
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# command line. Otherwise we disable RCS.
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#
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ifndef USE_RCS
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%:: %,v
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%:: RCS/%,v
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endif