jdk/make/common/CancelImplicits.gmk
author jlaskey
Tue, 19 Feb 2013 09:47:02 -0400
changeset 16248 e4bcc4b4f897
parent 5506 202f599c92aa
permissions -rw-r--r--
Merge

#
# Copyright (c) 1998, 1999, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License version 2 only, as
# published by the Free Software Foundation.  Oracle designates this
# particular file as subject to the "Classpath" exception as provided
# by Oracle in the LICENSE file that accompanied this code.
#
# This code 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
# version 2 for more details (a copy is included in the LICENSE file that
# accompanied this code).
#
# You should have received a copy of the GNU General Public License version
# 2 along with this work; if not, write to the Free Software Foundation,
# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
# or visit www.oracle.com if you need additional information or have any
# questions.
#

#
# Cancel some GNU make implicit rules.  This causes far fewer stats
# (crucial in incremental builds, when all that is being done is stats -- I
# notice upto 20% speedup on local disk). See sections "10.2 Catalogue of
# Implicit Rules" and "10.5.6 Canceling Implicit Rules" in make.dvi; see
# also the output of gnumake -p.
#
# CAUTION! This is the first thing included in our makefiles, so you must
# not add any targets here.  Canceling %.f: %.F doesn't make any sense
# because we don't have any targets ending with .f.
#

#
# We don't make binaries directly from .{source} files with implicit
# rules, so disable all of them.
#
ifndef USE_IMPLICITS
%: %.o
%: %.obj
%: %.dll
%: %.c
%: %.cc
%: %.C
%: %.p
%: %.f
%: %.s
%: %.F
%: %.r
%: %.S
%: %.mod
%: %.sh
endif

#
# If you are using RCS, you must set the variable USE_RCS at the make
# command line. Otherwise we disable RCS.
#
ifndef USE_RCS
%:: %,v
%:: RCS/%,v
endif