AC_CHECK_PROGS(PKGHANDLER, apt-get yum port pkgutil pkgadd)

  # Print a helpful message on how to acquire the necessary build dependency.

  # $1 is the help tag: freetyp2, cups, pulse, alsa etc

  MISSING_DEPENDENCY=$1

  PKGHANDLER_COMMAND=

  case $PKGHANDLER in

    apt-get)

      apt_help     $MISSING_DEPENDENCY ;;

      yum_help     $MISSING_DEPENDENCY ;;

    port)

      port_help    $MISSING_DEPENDENCY ;;

    pkgutil)

      pkgutil_help $MISSING_DEPENDENCY ;;

    pkgadd)

      pkgadd_help  $MISSING_DEPENDENCY ;;

  esac

  if test "x$PKGHANDLER_COMMAND" != x; then

    HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."

  fi

  case $1 in

      PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P unzip" ;;

      PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P zip" ;;

      PKGHANDLER_COMMAND="cd <location of cygwin setup.exe> && cmd /c setup -q -P make" ;;

      break ;;

  esac

  case $1 in

      PKGHANDLER_COMMAND="sudo apt-get install build-essential" ;;

      PKGHANDLER_COMMAND="sudo apt-get install openjdk-7-jdk" ;;

      PKGHANDLER_COMMAND="sudo apt-get install libasound2-dev" ;;

      PKGHANDLER_COMMAND="sudo apt-get install libcups2-dev" ;;

      PKGHANDLER_COMMAND="sudo apt-get install libfreetype6-dev" ;;

      PKGHANDLER_COMMAND="sudo apt-get install libpulse-dev" ;;

      PKGHANDLER_COMMAND="sudo apt-get install libX11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev" ;;

      PKGHANDLER_COMMAND="sudo apt-get install ccache" ;;

      break ;;

  esac

  case $1 in

      PKGHANDLER_COMMAND="sudo yum groupinstall \"Development Tools\"" ;;

      PKGHANDLER_COMMAND="sudo yum install java-1.7.0-openjdk" ;;

      PKGHANDLER_COMMAND="sudo yum install alsa-lib-devel" ;;

      PKGHANDLER_COMMAND="sudo yum install cups-devel" ;;

      PKGHANDLER_COMMAND="sudo yum install freetype-devel" ;;

      PKGHANDLER_COMMAND="sudo yum install pulseaudio-libs-devel" ;;

      PKGHANDLER_COMMAND="sudo yum install libXtst-devel libXt-devel libXrender-devel" ;;

      PKGHANDLER_COMMAND="sudo yum install ccache" ;;

      break ;;

  esac

  PKGHANDLER_COMMAND=""

  PKGHANDLER_COMMAND=""

  PKGHANDLER_COMMAND=""

  # Finally output some useful information to the user

  if test "x$CCACHE_FOUND" != x; then

    if  test "x$HAS_GOOD_CCACHE" = x; then

      CCACHE_STATUS="installed, but disabled (version older than 3.1.4)"

      CCACHE_HELP_MSG="You have ccache installed, but it is a version prior to 3.1.4. Try upgrading."

    else

      CCACHE_STATUS="installed and in use"

    fi

  else

    if test "x$GCC" = xyes; then

      CCACHE_STATUS="not installed (consider installing)"

      CCACHE_HELP_MSG="You do not have ccache installed. Try installing it."

    else

      CCACHE_STATUS="not available for your system"

    fi

  fi

  printf "\n"

  printf "====================================================\n"

  printf "A new configuration has been successfully created in\n"

  printf "$OUTPUT_ROOT\n"

  if test "x$CONFIGURE_COMMAND_LINE" != x; then

    printf "using configure arguments '$CONFIGURE_COMMAND_LINE'.\n"

  else

    printf "using default settings.\n"

  fi

  printf "\n"

  printf "Configuration summary:\n"

  printf "* Debug level:    $DEBUG_LEVEL\n"

  printf "* JDK variant:    $JDK_VARIANT\n"

  printf "* JVM variants:   $with_jvm_variants\n"

  printf "* OpenJDK target: OS: $OPENJDK_TARGET_OS, CPU architecture: $OPENJDK_TARGET_CPU_ARCH, address length: $OPENJDK_TARGET_CPU_BITS\n"

  printf "\n"

  printf "Tools summary:\n"

  if test "x$OPENJDK_BUILD_OS" = "xwindows"; then

    printf "* Environment:    $WINDOWS_ENV_VENDOR version $WINDOWS_ENV_VERSION (root at $WINDOWS_ENV_ROOT_PATH)\n"

  fi

  printf "* Boot JDK:       $BOOT_JDK_VERSION (at $BOOT_JDK)\n"

  printf "* C Compiler:     $CC_VENDOR version $CC_VERSION (at $CC)\n"

  printf "* C++ Compiler:   $CXX_VENDOR version $CXX_VERSION (at $CXX)\n"

  printf "\n"

  printf "Build performance summary:\n"

  printf "* Cores to use:   $JOBS\n"

  printf "* Memory limit:   $MEMORY_SIZE MB\n"

  printf "* ccache status:  $CCACHE_STATUS\n"

  printf "\n"

  if test "x$CCACHE_HELP_MSG" != x && test "x$HIDE_PERFORMANCE_HINTS" = "xno"; then

    printf "Build performance tip: ccache gives a tremendous speedup for C++ recompilations.\n"

    printf "$CCACHE_HELP_MSG\n"

    HELP_MSG_MISSING_DEPENDENCY([ccache])

    printf "$HELP_MSG\n"

    printf "\n"

  fi

  if test "x$BUILDING_MULTIPLE_JVM_VARIANTS" = "xyes"; then

    printf "NOTE: You have requested to build more than one version of the JVM, which\n"

    printf "will result in longer build times.\n"

    printf "\n"

  fi

  if test "x$FOUND_ALT_VARIABLES" != "x"; then

    printf "WARNING: You have old-style ALT_ environment variables set.\n"

    printf "These are not respected, and will be ignored. It is recommended\n"

    printf "that you clean your environment. The following variables are set:\n"

    printf "$FOUND_ALT_VARIABLES\n"

    printf "\n"

  fi

  if test "x$OUTPUT_DIR_IS_LOCAL" != "xyes"; then

    printf "WARNING: Your build output directory is not on a local disk.\n"

    printf "This will severely degrade build performance!\n"

    printf "It is recommended that you create an output directory on a local disk,\n"

    printf "and run the configure script again from that directory.\n"

    printf "\n"

  fi

  if test "x$IS_RECONFIGURE" = "xyes"; then

    printf "WARNING: The result of this configuration has overridden an older\n"

    printf "configuration. You *should* run 'make clean' to make sure you get a\n"

    printf "proper build. Failure to do so might result in strange build problems.\n"

    printf "\n"

  fi