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Java example source code file (jdk-options.m4)

This example Java source code file (jdk-options.m4) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

ac_arg_enable, ac_arg_with, ac_defun_once, ac_msg_checking, ac_msg_error, ac_msg_result, ac_subst, as_help_string, echo, hotspot_debug_level, hotspot_target, jdk, jvm_variants, sed

The jdk-options.m4 Java example source code

#
# Copyright (c) 2011, 2013, 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.
#

AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_VARIANT],
[
  ###############################################################################
  #
  # Check which variant of the JDK that we want to build.
  # Currently we have:
  #    normal:   standard edition
  # but the custom make system may add other variants
  #
  # Effectively the JDK variant gives a name to a specific set of
  # modules to compile into the JDK. In the future, these modules
  # might even be Jigsaw modules.
  #
  AC_MSG_CHECKING([which variant of the JDK to build])
  AC_ARG_WITH([jdk-variant], [AS_HELP_STRING([--with-jdk-variant],
      [JDK variant to build (normal) @<:@normal@:>@])])

  if test "x$with_jdk_variant" = xnormal || test "x$with_jdk_variant" = x; then
    JDK_VARIANT="normal"
  else
    AC_MSG_ERROR([The available JDK variants are: normal])
  fi

  AC_SUBST(JDK_VARIANT)

  AC_MSG_RESULT([$JDK_VARIANT])
])

AC_DEFUN_ONCE([JDKOPT_SETUP_JVM_VARIANTS],
[

  ###############################################################################
  #
  # Check which variants of the JVM that we want to build.
  # Currently we have:
  #    server: normal interpreter and a tiered C1/C2 compiler
  #    client: normal interpreter and C1 (no C2 compiler) (only 32-bit platforms)
  #    minimal1: reduced form of client with optional VM services and features stripped out
  #    kernel: kernel footprint JVM that passes the TCK without major performance problems,
  #             ie normal interpreter and C1, only the serial GC, kernel jvmti etc
  #    zero: no machine code interpreter, no compiler
  #    zeroshark: zero interpreter and shark/llvm compiler backend
  AC_MSG_CHECKING([which variants of the JVM to build])
  AC_ARG_WITH([jvm-variants], [AS_HELP_STRING([--with-jvm-variants],
      [JVM variants (separated by commas) to build (server, client, minimal1, kernel, zero, zeroshark) @<:@server@:>@])])

  if test "x$with_jvm_variants" = x; then
    with_jvm_variants="server"
  fi

  JVM_VARIANTS=",$with_jvm_variants,"
  TEST_VARIANTS=`$ECHO "$JVM_VARIANTS" | $SED -e 's/server,//' -e 's/client,//'  -e 's/minimal1,//' -e 's/kernel,//' -e 's/zero,//' -e 's/zeroshark,//'`

  if test "x$TEST_VARIANTS" != "x,"; then
    AC_MSG_ERROR([The available JVM variants are: server, client, minimal1, kernel, zero, zeroshark])
  fi
  AC_MSG_RESULT([$with_jvm_variants])

  JVM_VARIANT_SERVER=`$ECHO "$JVM_VARIANTS" | $SED -e '/,server,/!s/.*/false/g' -e '/,server,/s/.*/true/g'`
  JVM_VARIANT_CLIENT=`$ECHO "$JVM_VARIANTS" | $SED -e '/,client,/!s/.*/false/g' -e '/,client,/s/.*/true/g'`
  JVM_VARIANT_MINIMAL1=`$ECHO "$JVM_VARIANTS" | $SED -e '/,minimal1,/!s/.*/false/g' -e '/,minimal1,/s/.*/true/g'`
  JVM_VARIANT_KERNEL=`$ECHO "$JVM_VARIANTS" | $SED -e '/,kernel,/!s/.*/false/g' -e '/,kernel,/s/.*/true/g'`
  JVM_VARIANT_ZERO=`$ECHO "$JVM_VARIANTS" | $SED -e '/,zero,/!s/.*/false/g' -e '/,zero,/s/.*/true/g'`
  JVM_VARIANT_ZEROSHARK=`$ECHO "$JVM_VARIANTS" | $SED -e '/,zeroshark,/!s/.*/false/g' -e '/,zeroshark,/s/.*/true/g'`

  if test "x$JVM_VARIANT_CLIENT" = xtrue; then
    if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
      AC_MSG_ERROR([You cannot build a client JVM for a 64-bit machine.])
    fi
  fi
  if test "x$JVM_VARIANT_KERNEL" = xtrue; then
    if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
      AC_MSG_ERROR([You cannot build a kernel JVM for a 64-bit machine.])
    fi
  fi
  if test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
    if test "x$OPENJDK_TARGET_CPU_BITS" = x64; then
      AC_MSG_ERROR([You cannot build a minimal JVM for a 64-bit machine.])
    fi
  fi

  # Replace the commas with AND for use in the build directory name.
  ANDED_JVM_VARIANTS=`$ECHO "$JVM_VARIANTS" | $SED -e 's/^,//' -e 's/,$//' -e 's/,/AND/'`
  COUNT_VARIANTS=`$ECHO "$JVM_VARIANTS" | $SED -e 's/server,/1/' -e 's/client,/1/' -e 's/minimal1,/1/' -e 's/kernel,/1/' -e 's/zero,/1/' -e 's/zeroshark,/1/'`
  if test "x$COUNT_VARIANTS" != "x,1"; then
    BUILDING_MULTIPLE_JVM_VARIANTS=yes
  else
    BUILDING_MULTIPLE_JVM_VARIANTS=no
  fi

  AC_SUBST(JVM_VARIANTS)
  AC_SUBST(JVM_VARIANT_SERVER)
  AC_SUBST(JVM_VARIANT_CLIENT)
  AC_SUBST(JVM_VARIANT_MINIMAL1)
  AC_SUBST(JVM_VARIANT_KERNEL)
  AC_SUBST(JVM_VARIANT_ZERO)
  AC_SUBST(JVM_VARIANT_ZEROSHARK)

  INCLUDE_SA=true
  if test "x$JVM_VARIANT_ZERO" = xtrue ; then
    INCLUDE_SA=false
  fi
  if test "x$JVM_VARIANT_ZEROSHARK" = xtrue ; then
    INCLUDE_SA=false
  fi
  AC_SUBST(INCLUDE_SA)

  if test "x$OPENJDK_TARGET_OS" = "xmacosx"; then
    MACOSX_UNIVERSAL="true"
  fi

  AC_SUBST(MACOSX_UNIVERSAL)
])

AC_DEFUN_ONCE([JDKOPT_SETUP_DEBUG_LEVEL],
[
  ###############################################################################
  #
  # Set the debug level
  #    release: no debug information, all optimizations, no asserts.
  #    fastdebug: debug information (-g), all optimizations, all asserts
  #    slowdebug: debug information (-g), no optimizations, all asserts
  #
  DEBUG_LEVEL="release"
  AC_MSG_CHECKING([which debug level to use])
  AC_ARG_ENABLE([debug], [AS_HELP_STRING([--enable-debug],
      [set the debug level to fastdebug (shorthand for --with-debug-level=fastdebug) @<:@disabled@:>@])],
      [
        ENABLE_DEBUG="${enableval}"
        DEBUG_LEVEL="fastdebug"
      ], [ENABLE_DEBUG="no"])

  AC_ARG_WITH([debug-level], [AS_HELP_STRING([--with-debug-level],
      [set the debug level (release, fastdebug, slowdebug) @<:@release@:>@])],
      [
        DEBUG_LEVEL="${withval}"
        if test "x$ENABLE_DEBUG" = xyes; then
          AC_MSG_ERROR([You cannot use both --enable-debug and --with-debug-level at the same time.])
        fi
      ])
  AC_MSG_RESULT([$DEBUG_LEVEL])

  if test "x$DEBUG_LEVEL" != xrelease && \
      test "x$DEBUG_LEVEL" != xfastdebug && \
      test "x$DEBUG_LEVEL" != xslowdebug; then
    AC_MSG_ERROR([Allowed debug levels are: release, fastdebug and slowdebug])
  fi


  ###############################################################################
  #
  # Setup legacy vars/targets and new vars to deal with different debug levels.
  #

  case $DEBUG_LEVEL in
    release )
      VARIANT="OPT"
      FASTDEBUG="false"
      DEBUG_CLASSFILES="false"
      BUILD_VARIANT_RELEASE=""
      HOTSPOT_DEBUG_LEVEL="product"
      HOTSPOT_EXPORT="product"
      ;;
    fastdebug )
      VARIANT="DBG"
      FASTDEBUG="true"
      DEBUG_CLASSFILES="true"
      BUILD_VARIANT_RELEASE="-fastdebug"
      HOTSPOT_DEBUG_LEVEL="fastdebug"
      HOTSPOT_EXPORT="fastdebug"
      ;;
    slowdebug )
      VARIANT="DBG"
      FASTDEBUG="false"
      DEBUG_CLASSFILES="true"
      BUILD_VARIANT_RELEASE="-debug"
      HOTSPOT_DEBUG_LEVEL="jvmg"
      HOTSPOT_EXPORT="debug"
      ;;
  esac

  #####
  # Generate the legacy makefile targets for hotspot.
  # The hotspot api for selecting the build artifacts, really, needs to be improved.
  # JDK-7195896 will fix this on the hotspot side by using the JVM_VARIANT_* variables to
  # determine what needs to be built. All we will need to set here is all_product, all_fastdebug etc
  # But until then ...
  HOTSPOT_TARGET=""

  if test "x$JVM_VARIANT_SERVER" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL} "
  fi

  if test "x$JVM_VARIANT_CLIENT" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL}1 "
  fi

  if test "x$JVM_VARIANT_MINIMAL1" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL}minimal1 "
  fi

  if test "x$JVM_VARIANT_KERNEL" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL}kernel "
  fi

  if test "x$JVM_VARIANT_ZERO" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL}zero "
  fi

  if test "x$JVM_VARIANT_ZEROSHARK" = xtrue; then
    HOTSPOT_TARGET="$HOTSPOT_TARGET${HOTSPOT_DEBUG_LEVEL}shark "
  fi

  HOTSPOT_TARGET="$HOTSPOT_TARGET docs export_$HOTSPOT_EXPORT"

  # On Macosx universal binaries are produced, but they only contain
  # 64 bit intel. This invalidates control of which jvms are built
  # from configure, but only server is valid anyway. Fix this
  # when hotspot makefiles are rewritten.
  if test "x$MACOSX_UNIVERSAL" = xtrue; then
    HOTSPOT_TARGET=universal_${HOTSPOT_EXPORT}
  fi

  #####

  AC_SUBST(DEBUG_LEVEL)
  AC_SUBST(VARIANT)
  AC_SUBST(FASTDEBUG)
  AC_SUBST(DEBUG_CLASSFILES)
  AC_SUBST(BUILD_VARIANT_RELEASE)
])


###############################################################################
#
# Should we build only OpenJDK even if closed sources are present?
#
AC_DEFUN_ONCE([JDKOPT_SETUP_OPEN_OR_CUSTOM],
[
  AC_ARG_ENABLE([openjdk-only], [AS_HELP_STRING([--enable-openjdk-only],
      [suppress building custom source even if present @<:@disabled@:>@])],,[enable_openjdk_only="no"])

  AC_MSG_CHECKING([for presence of closed sources])
  if test -d "$SRC_ROOT/jdk/src/closed"; then
    CLOSED_SOURCE_PRESENT=yes
  else
    CLOSED_SOURCE_PRESENT=no
  fi
  AC_MSG_RESULT([$CLOSED_SOURCE_PRESENT])

  AC_MSG_CHECKING([if closed source is suppressed (openjdk-only)])
  SUPPRESS_CLOSED_SOURCE="$enable_openjdk_only"
  AC_MSG_RESULT([$SUPPRESS_CLOSED_SOURCE])

  if test "x$CLOSED_SOURCE_PRESENT" = xno; then
    OPENJDK=true
    if test "x$SUPPRESS_CLOSED_SOURCE" = "xyes"; then
      AC_MSG_WARN([No closed source present, --enable-openjdk-only makes no sense])
    fi
  else
    if test "x$SUPPRESS_CLOSED_SOURCE" = "xyes"; then
      OPENJDK=true
    else
      OPENJDK=false
    fi
  fi

  if test "x$OPENJDK" = "xtrue"; then
    SET_OPENJDK="OPENJDK=true"
  fi

  AC_SUBST(SET_OPENJDK)
])

AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_OPTIONS],
[

  ###############################################################################
  #
  # Should we build a JDK/JVM with headful support (ie a graphical ui)?
  # We always build headless support.
  #
  AC_MSG_CHECKING([headful support])
  AC_ARG_ENABLE([headful], [AS_HELP_STRING([--disable-headful],
      [disable building headful support (graphical UI support) @<:@enabled@:>@])],
      [SUPPORT_HEADFUL=${enable_headful}], [SUPPORT_HEADFUL=yes])

  SUPPORT_HEADLESS=yes
  BUILD_HEADLESS="BUILD_HEADLESS:=true"

  if test "x$SUPPORT_HEADFUL" = xyes; then
    # We are building both headful and headless.
    headful_msg="include support for both headful and headless"
  fi

  if test "x$SUPPORT_HEADFUL" = xno; then
    # Thus we are building headless only.
    BUILD_HEADLESS="BUILD_HEADLESS:=true"
    headful_msg="headless only"
  fi

  AC_MSG_RESULT([$headful_msg])

  AC_SUBST(SUPPORT_HEADLESS)
  AC_SUBST(SUPPORT_HEADFUL)
  AC_SUBST(BUILD_HEADLESS)

  # Control wether Hotspot runs Queens test after build.
  AC_ARG_ENABLE([hotspot-test-in-build], [AS_HELP_STRING([--enable-hotspot-test-in-build],
      [run the Queens test after Hotspot build @<:@disabled@:>@])],,
      [enable_hotspot_test_in_build=no])
  if test "x$enable_hotspot_test_in_build" = "xyes"; then
    TEST_IN_BUILD=true
  else
    TEST_IN_BUILD=false
  fi
  AC_SUBST(TEST_IN_BUILD)

  ###############################################################################
  #
  # Choose cacerts source file
  #
  AC_ARG_WITH(cacerts-file, [AS_HELP_STRING([--with-cacerts-file],
      [specify alternative cacerts file])])
  if test "x$with_cacerts_file" != x; then
    CACERTS_FILE=$with_cacerts_file
  else
    CACERTS_FILE=${SRC_ROOT}/jdk/src/share/lib/security/cacerts
  fi
  AC_SUBST(CACERTS_FILE)

  ###############################################################################
  #
  # Enable or disable unlimited crypto
  #
  AC_ARG_ENABLE(unlimited-crypto, [AS_HELP_STRING([--enable-unlimited-crypto],
      [Enable unlimited crypto policy @<:@disabled@:>@])],,
      [enable_unlimited_crypto=no])
  if test "x$enable_unlimited_crypto" = "xyes"; then
    UNLIMITED_CRYPTO=true
  else
    UNLIMITED_CRYPTO=false
  fi
  AC_SUBST(UNLIMITED_CRYPTO)

  ###############################################################################
  #
  # Enable or disable the elliptic curve crypto implementation
  #
  AC_DEFUN_ONCE([JDKOPT_DETECT_INTREE_EC],
  [
    AC_MSG_CHECKING([if elliptic curve crypto implementation is present])

    if test -d "${SRC_ROOT}/jdk/src/share/native/sun/security/ec/impl"; then
      ENABLE_INTREE_EC=yes
      AC_MSG_RESULT([yes])
    else
      ENABLE_INTREE_EC=no
      AC_MSG_RESULT([no])
    fi

    AC_SUBST(ENABLE_INTREE_EC)
  ])

  ###############################################################################
  #
  # Compress jars
  #
  COMPRESS_JARS=false

  AC_SUBST(COMPRESS_JARS)
])

###############################################################################
#
# Setup version numbers
#
AC_DEFUN_ONCE([JDKOPT_SETUP_JDK_VERSION_NUMBERS],
[
  # Source the version numbers
  . $AUTOCONF_DIR/version-numbers

  # Get the settings from parameters
  AC_ARG_WITH(milestone, [AS_HELP_STRING([--with-milestone],
      [Set milestone value for build @<:@internal@:>@])])
  if test "x$with_milestone" = xyes; then
    AC_MSG_ERROR([Milestone must have a value])
  elif test "x$with_milestone" != x; then
    MILESTONE="$with_milestone"
  fi
  if test "x$MILESTONE" = x; then
    MILESTONE=internal
  fi

  AC_ARG_WITH(update-version, [AS_HELP_STRING([--with-update-version],
      [Set update version value for build @<:@b00@:>@])])
  if test "x$with_update_version" = xyes; then
    AC_MSG_ERROR([Update version must have a value])
  elif test "x$with_update_version" != x; then
    JDK_UPDATE_VERSION="$with_update_version"
  fi

  AC_ARG_WITH(user-release-suffix, [AS_HELP_STRING([--with-user-release-suffix],
      [Add a custom string to the version string if build number isn't set.@<:@username_builddateb00@:>@])])
  if test "x$with_user_release_suffix" = xyes; then
    AC_MSG_ERROR([Release suffix must have a value])
  elif test "x$with_user_release_suffix" != x; then
    USER_RELEASE_SUFFIX="$with_user_release_suffix"
  fi

  AC_ARG_WITH(build-number, [AS_HELP_STRING([--with-build-number],
      [Set build number value for build @<:@b00@:>@])])
  if test "x$with_build_number" = xyes; then
    AC_MSG_ERROR([Build number must have a value])
  elif test "x$with_build_number" != x; then
    JDK_BUILD_NUMBER="$with_build_number"
  fi
  # Define default USER_RELEASE_SUFFIX if BUILD_NUMBER and USER_RELEASE_SUFFIX are not set
  if test "x$JDK_BUILD_NUMBER" = x; then
    JDK_BUILD_NUMBER=b00
    if test "x$USER_RELEASE_SUFFIX" = x; then
      BUILD_DATE=`date '+%Y_%m_%d_%H_%M'`
      # Avoid [:alnum:] since it depends on the locale.
      CLEAN_USERNAME=`echo "$USER" | $TR -d -c 'abcdefghijklmnopqrstuvqxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'`
      USER_RELEASE_SUFFIX=`echo "${CLEAN_USERNAME}_${BUILD_DATE}" | $TR 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' 'abcdefghijklmnopqrstuvwxyz'`
    fi
  fi

  # Now set the JDK version, milestone, build number etc.
  AC_SUBST(USER_RELEASE_SUFFIX)
  AC_SUBST(JDK_MAJOR_VERSION)
  AC_SUBST(JDK_MINOR_VERSION)
  AC_SUBST(JDK_MICRO_VERSION)
  AC_SUBST(JDK_UPDATE_VERSION)
  AC_SUBST(JDK_BUILD_NUMBER)
  AC_SUBST(MILESTONE)
  AC_SUBST(LAUNCHER_NAME)
  AC_SUBST(PRODUCT_NAME)
  AC_SUBST(PRODUCT_SUFFIX)
  AC_SUBST(JDK_RC_PLATFORM_NAME)
  AC_SUBST(COMPANY_NAME)
  AC_SUBST(MACOSX_BUNDLE_NAME_BASE)
  AC_SUBST(MACOSX_BUNDLE_ID_BASE)

  COPYRIGHT_YEAR=`date +'%Y'`
  AC_SUBST(COPYRIGHT_YEAR)

  if test "x$JDK_UPDATE_VERSION" != x; then
    JDK_VERSION="${JDK_MAJOR_VERSION}.${JDK_MINOR_VERSION}.${JDK_MICRO_VERSION}_${JDK_UPDATE_VERSION}"
  else
    JDK_VERSION="${JDK_MAJOR_VERSION}.${JDK_MINOR_VERSION}.${JDK_MICRO_VERSION}"
  fi
  AC_SUBST(JDK_VERSION)

  COOKED_BUILD_NUMBER=`$ECHO $JDK_BUILD_NUMBER | $SED -e 's/^b//' -e 's/^0//'`
  AC_SUBST(COOKED_BUILD_NUMBER)
])

AC_DEFUN_ONCE([JDKOPT_SETUP_BUILD_TWEAKS],
[
  HOTSPOT_MAKE_ARGS="$HOTSPOT_TARGET"
  AC_SUBST(HOTSPOT_MAKE_ARGS)

  # The name of the Service Agent jar.
  SALIB_NAME="${LIBRARY_PREFIX}saproc${SHARED_LIBRARY_SUFFIX}"
  if test "x$OPENJDK_TARGET_OS" = "xwindows"; then
    SALIB_NAME="${LIBRARY_PREFIX}sawindbg${SHARED_LIBRARY_SUFFIX}"
  fi
  AC_SUBST(SALIB_NAME)
])

AC_DEFUN_ONCE([JDKOPT_SETUP_DEBUG_SYMBOLS],
[
  #
  # ENABLE_DEBUG_SYMBOLS
  # This must be done after the toolchain is setup, since we're looking at objcopy.
  #
  AC_ARG_ENABLE([debug-symbols],
      [AS_HELP_STRING([--disable-debug-symbols],[disable generation of debug symbols @<:@enabled@:>@])])

  AC_MSG_CHECKING([if we should generate debug symbols])

  if test "x$enable_debug_symbols" = "xyes" && test "x$OBJCOPY" = x; then
    # explicit enabling of enable-debug-symbols and can't find objcopy
    #   this is an error
    AC_MSG_ERROR([Unable to find objcopy, cannot enable debug-symbols])
  fi

  if test "x$enable_debug_symbols" = "xyes"; then
    ENABLE_DEBUG_SYMBOLS=true
  elif test "x$enable_debug_symbols" = "xno"; then
    ENABLE_DEBUG_SYMBOLS=false
  else
    # Default is on if objcopy is found
    if test "x$OBJCOPY" != x; then
      ENABLE_DEBUG_SYMBOLS=true
    # MacOS X and Windows don't use objcopy but default is on for those OSes
    elif test "x$OPENJDK_TARGET_OS" = xmacosx || test "x$OPENJDK_TARGET_OS" = xwindows; then
      ENABLE_DEBUG_SYMBOLS=true
    else
      ENABLE_DEBUG_SYMBOLS=false
    fi
  fi

  AC_MSG_RESULT([$ENABLE_DEBUG_SYMBOLS])

  #
  # ZIP_DEBUGINFO_FILES
  #
  AC_MSG_CHECKING([if we should zip debug-info files])
  AC_ARG_ENABLE([zip-debug-info],
      [AS_HELP_STRING([--disable-zip-debug-info],[disable zipping of debug-info files @<:@enabled@:>@])],
      [enable_zip_debug_info="${enableval}"], [enable_zip_debug_info="yes"])
  AC_MSG_RESULT([${enable_zip_debug_info}])

  if test "x${enable_zip_debug_info}" = "xno"; then
    ZIP_DEBUGINFO_FILES=false
  else
    ZIP_DEBUGINFO_FILES=true
  fi

  AC_SUBST(ENABLE_DEBUG_SYMBOLS)
  AC_SUBST(ZIP_DEBUGINFO_FILES)
  AC_SUBST(CFLAGS_DEBUG_SYMBOLS)
  AC_SUBST(CXXFLAGS_DEBUG_SYMBOLS)
])

# Support for customization of the build process. Some build files
# will include counterparts from this location, if they exist. This allows
# for a degree of customization of the build targets and the rules/recipes
# to create them
AC_ARG_WITH([custom-make-dir], [AS_HELP_STRING([--with-custom-make-dir],
[use this directory for custom build/make files])], [CUSTOM_MAKE_DIR=$with_custom_make_dir])
AC_SUBST(CUSTOM_MAKE_DIR)

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