#

# Copyright (c) 2011, 2015, 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.

#

# Configured @DATE_WHEN_CONFIGURED@ to build

# for target system @OPENJDK_TARGET_OS@-@OPENJDK_TARGET_CPU@

#   (called @OPENJDK_TARGET_AUTOCONF_NAME@ by autoconf)

# on build system @OPENJDK_BUILD_OS@-@OPENJDK_BUILD_CPU@

#   (called @OPENJDK_BUILD_AUTOCONF_NAME@ by autoconf)

# using 'configure @CONFIGURE_COMMAND_LINE@'

# The command line given to configure.

CONFIGURE_COMMAND_LINE:=@CONFIGURE_COMMAND_LINE@

# A self-referential reference to this file.

SPEC:=@SPEC@

# SPACE is defined in MakeBase.gmk, but it is also used in := rules here for some

# toolchains, and is needed if MakeBase.gmk is not included before this file.

X:=

SPACE:=$(X) $(X)

# What make to use for main processing, after bootstrapping top-level Makefile.

MAKE := @MAKE@

# The default make arguments

MAKE_ARGS = $(MAKE_LOG_FLAGS) -r -R -I $(TOPDIR)/make/common SPEC=$(SPEC) \

    MAKE_LOG_FLAGS="$(MAKE_LOG_FLAGS)" LOG_LEVEL=$(LOG_LEVEL)

OUTPUT_SYNC_SUPPORTED:=@OUTPUT_SYNC_SUPPORTED@

OUTPUT_SYNC:=@OUTPUT_SYNC@

# Override the shell with bash

BASH:=@BASH@

BASH_ARGS:=@BASH_ARGS@

SHELL:=$(BASH) $(BASH_ARGS)

# The "human readable" name of this configuration

CONF_NAME:=@CONF_NAME@

# The built jdk will run in this target system.

OPENJDK_TARGET_OS:=@OPENJDK_TARGET_OS@

OPENJDK_TARGET_OS_TYPE:=@OPENJDK_TARGET_OS_TYPE@

OPENJDK_TARGET_OS_ENV:=@OPENJDK_TARGET_OS_ENV@

OPENJDK_TARGET_CPU:=@OPENJDK_TARGET_CPU@

OPENJDK_TARGET_CPU_ARCH:=@OPENJDK_TARGET_CPU_ARCH@

OPENJDK_TARGET_CPU_BITS:=@OPENJDK_TARGET_CPU_BITS@

OPENJDK_TARGET_CPU_ENDIAN:=@OPENJDK_TARGET_CPU_ENDIAN@

COMPILE_TYPE:=@COMPILE_TYPE@

# Legacy support

OPENJDK_TARGET_CPU_ISADIR:=@OPENJDK_TARGET_CPU_ISADIR@

OPENJDK_TARGET_CPU_LIBDIR:=@OPENJDK_TARGET_CPU_LIBDIR@

OPENJDK_TARGET_CPU_LEGACY:=@OPENJDK_TARGET_CPU_LEGACY@

OPENJDK_TARGET_CPU_LEGACY_LIB:=@OPENJDK_TARGET_CPU_LEGACY_LIB@

OPENJDK_TARGET_CPU_OSARCH:=@OPENJDK_TARGET_CPU_OSARCH@

OPENJDK_TARGET_CPU_JLI_CFLAGS:=@OPENJDK_TARGET_CPU_JLI_CFLAGS@

OPENJDK_TARGET_OS_EXPORT_DIR:=@OPENJDK_TARGET_OS_EXPORT_DIR@

# We are building on this build system.

# When not cross-compiling, it is the same as the target.

OPENJDK_BUILD_OS:=@OPENJDK_BUILD_OS@

OPENJDK_BUILD_OS_TYPE:=@OPENJDK_BUILD_OS_TYPE@

OPENJDK_BUILD_OS_ENV:=@OPENJDK_BUILD_OS_ENV@

OPENJDK_BUILD_CPU:=@OPENJDK_BUILD_CPU@

OPENJDK_BUILD_CPU_ARCH:=@OPENJDK_BUILD_CPU_ARCH@

OPENJDK_BUILD_CPU_BITS:=@OPENJDK_BUILD_CPU_BITS@

OPENJDK_BUILD_CPU_ENDIAN:=@OPENJDK_BUILD_CPU_ENDIAN@

# Legacy OS values for use in release file.

REQUIRED_OS_NAME:=@REQUIRED_OS_NAME@

REQUIRED_OS_VERSION:=@REQUIRED_OS_VERSION@

@SET_OPENJDK@

LIBM:=@LIBM@

LIBDL:=@LIBDL@

# colon or semicolon

PATH_SEP:=@PATH_SEP@

# Save the original path before replacing it with the Visual Studio tools

ORIGINAL_PATH:=@ORIGINAL_PATH@

ifeq ($(OPENJDK_TARGET_OS), windows)

  # On Windows, the Visual Studio toolchain needs the PATH to be adjusted

  # to include Visual Studio tools (this needs to be in cygwin/msys style).

  export PATH:=@VS_PATH@

endif

SYSROOT_CFLAGS := @SYSROOT_CFLAGS@

SYSROOT_LDFLAGS := @SYSROOT_LDFLAGS@

# Paths to the source code

ADD_SRC_ROOT:=@ADD_SRC_ROOT@

OVERRIDE_SRC_ROOT:=@OVERRIDE_SRC_ROOT@

# The top-level directory of the forest (SRC_ROOT is a traditional alias)

TOPDIR:=@TOPDIR@

# These two versions of TOPDIR are used in string comparisons

ORIGINAL_TOPDIR:=@ORIGINAL_TOPDIR@

CANONICAL_TOPDIR:=@CANONICAL_TOPDIR@

SRC_ROOT:=@TOPDIR@

OUTPUT_ROOT:=@OUTPUT_ROOT@

JDK_TOPDIR:=@JDK_TOPDIR@

LANGTOOLS_TOPDIR:=@LANGTOOLS_TOPDIR@

CORBA_TOPDIR:=@CORBA_TOPDIR@

JAXP_TOPDIR:=@JAXP_TOPDIR@

JAXWS_TOPDIR:=@JAXWS_TOPDIR@

HOTSPOT_TOPDIR:=@HOTSPOT_TOPDIR@

NASHORN_TOPDIR:=@NASHORN_TOPDIR@

COPYRIGHT_YEAR:=@COPYRIGHT_YEAR@

# Information gathered from the version.numbers file.

JDK_MAJOR_VERSION:=@JDK_MAJOR_VERSION@

JDK_MINOR_VERSION:=@JDK_MINOR_VERSION@

JDK_MICRO_VERSION:=@JDK_MICRO_VERSION@

JDK_UPDATE_VERSION:=@JDK_UPDATE_VERSION@

JDK_BUILD_NUMBER:=@JDK_BUILD_NUMBER@

MILESTONE:=@MILESTONE@

LAUNCHER_NAME:=@LAUNCHER_NAME@

PRODUCT_NAME:=@PRODUCT_NAME@

PRODUCT_SUFFIX:=@PRODUCT_SUFFIX@

JDK_RC_PLATFORM_NAME:=@JDK_RC_PLATFORM_NAME@

COMPANY_NAME:=@COMPANY_NAME@

MACOSX_BUNDLE_NAME_BASE=@MACOSX_BUNDLE_NAME_BASE@

MACOSX_BUNDLE_ID_BASE=@MACOSX_BUNDLE_ID_BASE@

USER_RELEASE_SUFFIX=@USER_RELEASE_SUFFIX@

# Different version strings generated from the above information.

JDK_VERSION:=@JDK_VERSION@

RUNTIME_NAME=$(PRODUCT_NAME) $(PRODUCT_SUFFIX)

COOKED_BUILD_NUMBER:=@COOKED_BUILD_NUMBER@

# These variables need to be generated here so that MILESTONE and

# JDK_BUILD_NUMBER can be overridden on the make command line.

ifeq ($(MILESTONE), fcs)

  RELEASE=$(JDK_VERSION)$(BUILD_VARIANT_RELEASE)

else

  RELEASE=$(JDK_VERSION)-$(MILESTONE)$(BUILD_VARIANT_RELEASE)

endif

ifneq ($(USER_RELEASE_SUFFIX), )

  FULL_VERSION=$(RELEASE)-$(USER_RELEASE_SUFFIX)-$(JDK_BUILD_NUMBER)

else

  FULL_VERSION=$(RELEASE)-$(JDK_BUILD_NUMBER)

endif

JRE_RELEASE_VERSION:=$(FULL_VERSION)

JDK_VERSION_FOR_MANIFEST := $(JDK_MINOR_VERSION).$(JDK_MICRO_VERSION).$(if $(JDK_UPDATE_VERSION),$(JDK_UPDATE_VERSION),0).$(COOKED_BUILD_NUMBER)

# How to compile the code: release, fastdebug or slowdebug

DEBUG_LEVEL:=@DEBUG_LEVEL@

# This is the JDK variant to build.

# The JDK variant is a name for a specific set of modules to be compiled for the JDK.

JDK_VARIANT:=@JDK_VARIANT@

# Should we compile support for running with a graphical UI? (ie headful)

# Should we compile support for running without? (ie headless)

SUPPORT_HEADFUL:=@SUPPORT_HEADFUL@

SUPPORT_HEADLESS:=@SUPPORT_HEADLESS@

# Legacy defines controlled by the SUPPORT_HEADLESS and SUPPORT_HEADFUL options.

@BUILD_HEADLESS@

# These are the libjvms that we want to build.

# The java launcher uses the default.

# The others can be selected by specifying -client -server -minimal1 -kernel -zero or -zeroshark

# on the java launcher command line.

JVM_VARIANTS:=@JVM_VARIANTS@

JVM_VARIANT_SERVER:=@JVM_VARIANT_SERVER@

JVM_VARIANT_CLIENT:=@JVM_VARIANT_CLIENT@

JVM_VARIANT_MINIMAL1:=@JVM_VARIANT_MINIMAL1@

JVM_VARIANT_KERNEL:=@JVM_VARIANT_KERNEL@

JVM_VARIANT_ZERO:=@JVM_VARIANT_ZERO@

JVM_VARIANT_ZEROSHARK:=@JVM_VARIANT_ZEROSHARK@

JVM_VARIANT_CORE:=@JVM_VARIANT_CORE@

# Universal binaries on macosx

MACOSX_UNIVERSAL=@MACOSX_UNIVERSAL@

# Legacy setting: -debug or -fastdebug

# Still used in version string...

BUILD_VARIANT_RELEASE:=@BUILD_VARIANT_RELEASE@

# JDK_OUTPUTDIR specifies where a working jvm is built.

# You can run $(JDK_OUTPUTDIR)/bin/java

# Though the layout of the contents of $(JDK_OUTPUTDIR) is not

# yet the same as a default installation.

#

# When you run "make install" it will create the standardized

# layout for the jdk and the jre inside the IMAGES_OUTPUTDIR subdir.

# Then it will copy the contents of the jdk into the installation

# directory.

BUILD_OUTPUT:=@BUILD_OUTPUT@

# Colon left out to be able to override IMAGES_OUTPUTDIR for bootcycle-images

SUPPORT_OUTPUTDIR=$(BUILD_OUTPUT)/support

BUILDTOOLS_OUTPUTDIR=$(BUILD_OUTPUT)/buildtools

HOTSPOT_OUTPUTDIR=$(BUILD_OUTPUT)/hotspot

JDK_OUTPUTDIR=$(BUILD_OUTPUT)/jdk

IMAGES_OUTPUTDIR=$(BUILD_OUTPUT)/images

TESTMAKE_OUTPUTDIR=$(BUILD_OUTPUT)/test-make

MAKESUPPORT_OUTPUTDIR=$(BUILD_OUTPUT)/make-support

# This does not get overridden in a bootcycle build

CONFIGURESUPPORT_OUTPUTDIR:=@CONFIGURESUPPORT_OUTPUTDIR@

HOTSPOT_DIST=@HOTSPOT_DIST@

BUILD_HOTSPOT=@BUILD_HOTSPOT@

# The boot jdk to use. This is overridden in bootcycle-spec.gmk. Make sure to keep

# it in sync.

BOOT_JDK:=@BOOT_JDK@

# When compiling Java source to be run by the boot jdk

# use these extra flags, eg -source 6 -target 6

BOOT_JDK_SOURCETARGET:=@BOOT_JDK_SOURCETARGET@

# Information about the build system

NUM_CORES:=@NUM_CORES@

MEMORY_SIZE:=@MEMORY_SIZE@

# Enable sjavac support = use a javac server,

# multi core javac compilation and dependency tracking.

ENABLE_SJAVAC:=@ENABLE_SJAVAC@

# Store sjavac server synchronization files here, and

# the sjavac server log files.

SJAVAC_SERVER_DIR=$(MAKESUPPORT_OUTPUTDIR)/javacservers

# Number of parallel jobs to use for compilation

JOBS?=@JOBS@

FREETYPE_LIBS:=@FREETYPE_LIBS@

FREETYPE_CFLAGS:=@FREETYPE_CFLAGS@

FREETYPE_BUNDLE_LIB_PATH=@FREETYPE_BUNDLE_LIB_PATH@

CUPS_CFLAGS:=@CUPS_CFLAGS@

ALSA_LIBS:=@ALSA_LIBS@

ALSA_CFLAGS:=@ALSA_CFLAGS@

PACKAGE_PATH=@PACKAGE_PATH@

# Source file for cacerts

CACERTS_FILE=@CACERTS_FILE@

# Enable unlimited crypto policy

UNLIMITED_CRYPTO=@UNLIMITED_CRYPTO@

GCOV_ENABLED=@GCOV_ENABLED@

# Necessary additional compiler flags to compile X11

X_CFLAGS:=@X_CFLAGS@

X_LIBS:=@X_LIBS@

# The lowest required version of macosx to enforce compatiblity for

MACOSX_VERSION_MIN=@MACOSX_VERSION_MIN@

# Toolchain type: gcc, clang, solstudio, lxc, microsoft...

TOOLCHAIN_TYPE:=@TOOLCHAIN_TYPE@

# Option used to tell the compiler whether to create 32- or 64-bit executables

COMPILER_TARGET_BITS_FLAG:=@COMPILER_TARGET_BITS_FLAG@

COMPILER_SUPPORTS_TARGET_BITS_FLAG=@COMPILER_SUPPORTS_TARGET_BITS_FLAG@

CC_OUT_OPTION:=@CC_OUT_OPTION@

EXE_OUT_OPTION:=@EXE_OUT_OPTION@

LD_OUT_OPTION:=@LD_OUT_OPTION@

AR_OUT_OPTION:=@AR_OUT_OPTION@

# Flags used for overriding the default opt setting for a C/C++ source file.

C_O_FLAG_HIGHEST:=@C_O_FLAG_HIGHEST@

C_O_FLAG_HI:=@C_O_FLAG_HI@

C_O_FLAG_NORM:=@C_O_FLAG_NORM@

C_O_FLAG_NONE:=@C_O_FLAG_NONE@

CXX_O_FLAG_HIGHEST:=@CXX_O_FLAG_HIGHEST@

CXX_O_FLAG_HI:=@CXX_O_FLAG_HI@

CXX_O_FLAG_NORM:=@CXX_O_FLAG_NORM@

CXX_O_FLAG_NONE:=@CXX_O_FLAG_NONE@

C_FLAG_DEPS:=@C_FLAG_DEPS@

CXX_FLAG_DEPS:=@CXX_FLAG_DEPS@

DISABLE_WARNING_PREFIX := @DISABLE_WARNING_PREFIX@

CFLAGS_WARNINGS_ARE_ERRORS:=@CFLAGS_WARNINGS_ARE_ERRORS@

# A global flag (true or false) determining if native warnings are considered errors.

WARNINGS_AS_ERRORS := @WARNINGS_AS_ERRORS@

CFLAGS_CCACHE:=@CFLAGS_CCACHE@

# Tools that potentially need to be cross compilation aware.

CC:=@FIXPATH@ @CCACHE@ @CC@

# CFLAGS used to compile the jdk native libraries (C-code)

CFLAGS_JDKLIB:=@CFLAGS_JDKLIB@

CXXFLAGS_JDKLIB:=@CXXFLAGS_JDKLIB@

# CFLAGS used to compile the jdk native launchers (C-code)

CFLAGS_JDKEXE:=@CFLAGS_JDKEXE@

CXXFLAGS_JDKEXE:=@CXXFLAGS_JDKEXE@

CXX:=@FIXPATH@ @CCACHE@ @CXX@

#CXXFLAGS:=@CXXFLAGS@

CPP:=@FIXPATH@ @CPP@

#CPPFLAGS:=@CPPFLAGS@

# The linker can be gcc or ld on unix systems, or link.exe on windows systems.

LD:=@FIXPATH@ @LD@

# Xcode SDK path

SDKROOT:=@SDKROOT@

# The linker on older SuSE distros (e.g. on SLES 10) complains with:

# "Invalid version tag `SUNWprivate_1.1'. Only anonymous version tag is allowed in executable."

# if feeded with a version script which contains named tags.

USING_BROKEN_SUSE_LD:=@USING_BROKEN_SUSE_LD@

# LDFLAGS used to link the jdk native libraries (C-code)

LDFLAGS_JDKLIB:=@LDFLAGS_JDKLIB@

LDFLAGS_JDKLIB_SUFFIX:=@LDFLAGS_JDKLIB_SUFFIX@

# LDFLAGS used to link the jdk native launchers (C-code)

LDFLAGS_JDKEXE:=@LDFLAGS_JDKEXE@

LDFLAGS_JDKEXE_SUFFIX:=@LDFLAGS_JDKEXE_SUFFIX@

# LDFLAGS specific to C++ linking.

LDFLAGS_CXX_JDK:=@LDFLAGS_CXX_JDK@

# Sometimes a different linker is needed for c++ libs

LDCXX:=@FIXPATH@ @LDCXX@

# The flags for linking libstdc++ linker.

LIBCXX:=@LIBCXX@

# Compiler and linker flags used when building native tests

CFLAGS_TESTLIB:=@CFLAGS_TESTLIB@

CXXFLAGS_TESTLIB:=@CXXFLAGS_TESTLIB@

CFLAGS_TESTEXE:=@CFLAGS_TESTEXE@

CXXFLAGS_TESTEXE:=@CXXFLAGS_TESTEXE@

LDFLAGS_TESTLIB:=@LDFLAGS_TESTLIB@

LDFLAGS_TESTLIB_SUFFIX:=@LDFLAGS_TESTLIB_SUFFIX@

LDFLAGS_TESTEXE:=@LDFLAGS_TESTEXE@

LDFLAGS_TESTEXE_SUFFIX:=@LDFLAGS_TESTEXE_SUFFIX@

# BUILD_CC/BUILD_LD is a compiler/linker that generates code that is runnable on the

# build platform.

BUILD_CC:=@FIXPATH@ @BUILD_CC@

BUILD_LD:=@FIXPATH@ @BUILD_LD@

BUILD_SYSROOT_CFLAGS:=@BUILD_SYSROOT_CFLAGS@

BUILD_SYSROOT_LDFLAGS:=@BUILD_SYSROOT_LDFLAGS@

AS:=@FIXPATH@ @AS@

# AR is used to create a static library (is ar in unix, lib.exe in windows)

AR:=@FIXPATH@ @AR@

ARFLAGS:=@ARFLAGS@

NM:=@NM@

GNM:=@GNM@

STRIP:=@STRIP@

LIPO:=@LIPO@

# Options to linker to specify a mapfile.

# (Note absence of := assignment, because we do not want to evaluate the macro body here)

SET_SHARED_LIBRARY_MAPFILE=@SET_SHARED_LIBRARY_MAPFILE@

# Options for C/CXX compiler to be used if linking is performed

#   using reorder file

C_FLAG_REORDER:=@C_FLAG_REORDER@

CXX_FLAG_REORDER:=@CXX_FLAG_REORDER@

#

# Options for generating debug symbols

ENABLE_DEBUG_SYMBOLS:=@ENABLE_DEBUG_SYMBOLS@

CFLAGS_DEBUG_SYMBOLS:=@CFLAGS_DEBUG_SYMBOLS@

CXXFLAGS_DEBUG_SYMBOLS:=@CXXFLAGS_DEBUG_SYMBOLS@

ZIP_DEBUGINFO_FILES:=@ZIP_DEBUGINFO_FILES@

#

# Compress (or not) jars

COMPRESS_JARS=@COMPRESS_JARS@

# Options to linker to specify the library name.

# (Note absence of := assignment, because we do not want to evaluate the macro body here)

SET_SHARED_LIBRARY_NAME=@SET_SHARED_LIBRARY_NAME@

# Set origin using the linker, ie use the relative path to the dependent library to find the dependees.

# (Note absence of := assignment, because we do not want to evaluate the macro body here)

SET_SHARED_LIBRARY_ORIGIN=@SET_SHARED_LIBRARY_ORIGIN@

SET_EXECUTABLE_ORIGIN=@SET_EXECUTABLE_ORIGIN@

# Different OS:es have different ways of naming shared libraries.

# The SHARED_LIBRARY macro takes "verify" as and argument and returns:

#    "libverify.so" or "libverify.dylib" or "verify.dll" depending on platform.

# (Note absence of := assignment, because we do not want to evaluate the macro body here)

SHARED_LIBRARY=@SHARED_LIBRARY@

STATIC_LIBRARY=@STATIC_LIBRARY@

LIBRARY_PREFIX:=@LIBRARY_PREFIX@

SHARED_LIBRARY_SUFFIX:=@SHARED_LIBRARY_SUFFIX@

STATIC_LIBRARY_SUFFIX:=@STATIC_LIBRARY_SUFFIX@

EXE_SUFFIX:=@EXE_SUFFIX@

OBJ_SUFFIX:=@OBJ_SUFFIX@

STRIPFLAGS:=@STRIPFLAGS@

JAVA_FLAGS:=@JAVA_FLAGS@

JAVA_FLAGS_BIG:=@JAVA_FLAGS_BIG@

JAVA_FLAGS_SMALL:=@JAVA_FLAGS_SMALL@

JAVA_TOOL_FLAGS_SMALL:=@JAVA_TOOL_FLAGS_SMALL@

SJAVAC_SERVER_JAVA_FLAGS:=@SJAVAC_SERVER_JAVA_FLAGS@

# The *_CMD variables are defined separately to be easily overridden in bootcycle-spec.gmk

# for bootcycle-images build. Make sure to keep them in sync. Do not use the *_CMD

# versions of the variables directly.

JAVA_CMD:=@JAVA@

JAVAC_CMD:=@JAVAC@

JAVAH_CMD:=@JAVAH@

JAR_CMD:=@JAR@

JARSIGNER_CMD:=@JARSIGNER@

SJAVAC_SERVER_JAVA_CMD:=@SJAVAC_SERVER_JAVA@

# These variables are meant to be used. They are defined with = instead of := to make

# it possible to override only the *_CMD variables.

JAVA=@FIXPATH@ $(JAVA_CMD) $(JAVA_FLAGS_BIG) $(JAVA_FLAGS)

JAVA_SMALL=@FIXPATH@ $(JAVA_CMD) $(JAVA_FLAGS_SMALL) $(JAVA_FLAGS)

JAVAC=@FIXPATH@ $(JAVAC_CMD)

JAVAH=@FIXPATH@ $(JAVAH_CMD)

JAR=@FIXPATH@ $(JAR_CMD)

JARSIGNER=@FIXPATH@ $(JARSIGNER_CMD)

# A specific java binary with specific options can be used to run

# the long running background sjavac servers and other long running tasks.

SJAVAC_SERVER_JAVA=@FIXPATH@ $(SJAVAC_SERVER_JAVA_CMD) $(SJAVAC_SERVER_JAVA_FLAGS)

# Hotspot sets this variable before reading the SPEC when compiling sa-jdi.jar. Avoid

# overriding that value by using ?=.

JAVAC_FLAGS?=@JAVAC_FLAGS@

# You run the new javac using the boot jdk with $(BOOT_JDK)/bin/java $(NEW_JAVAC) ...

# Use = assignment to be able to override in bootcycle-spec.gmk

INTERIM_LANGTOOLS_JAR = $(BUILDTOOLS_OUTPUTDIR)/interim_langtools.jar

INTERIM_LANGTOOLS_ARGS = "-Xbootclasspath/p:$(INTERIM_LANGTOOLS_JAR)" -cp $(INTERIM_LANGTOOLS_JAR)

NEW_JAVAC   = $(INTERIM_LANGTOOLS_ARGS) com.sun.tools.javac.Main

NEW_JAVADOC = $(INTERIM_LANGTOOLS_ARGS) com.sun.tools.javadoc.Main

# Base flags for RC

# Guarding this against resetting value. Legacy make files include spec multiple

# times.

ifndef RC_FLAGS

  RC_FLAGS:=@RC_FLAGS@

endif

# Tools adhering to a minimal and common standard of posix compliance.

AWK:=@AWK@

BASENAME:=@BASENAME@

CAT:=@CAT@

CCACHE:=@CCACHE@

# CD is going away, but remains to cater for legacy makefiles.

CD:=cd

CHMOD:=@CHMOD@

CODESIGN:=@CODESIGN@

COMM:=@COMM@

CP:=@CP@

CPIO:=@CPIO@

CUT:=@CUT@

DATE:=@DATE@

DIFF:=@DIFF@

DIRNAME:=@DIRNAME@

DSYMUTIL:=@DSYMUTIL@

FIND:=@FIND@

FIND_DELETE:=@FIND_DELETE@

ECHO:=@ECHO@

EGREP:=@EGREP@

FGREP:=@FGREP@

GREP:=@GREP@

HEAD:=@HEAD@