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Java example source code file (help.m4)

This example Java source code file (help.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

ccache_help_msg, ccache_status, free, general, gnu, help_msg, license, missing_dependency, oracle, pkghandler_command, public, this, warning, you

The help.m4 Java example source code

#
# Copyright (c) 2011, 2012, 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([HELP_SETUP_DEPENDENCY_HELP],
[
  AC_CHECK_PROGS(PKGHANDLER, apt-get yum port pkgutil pkgadd)
])

AC_DEFUN([HELP_MSG_MISSING_DEPENDENCY],
[
  # Print a helpful message on how to acquire the necessary build dependency.
  # $1 is the help tag: freetype, cups, pulse, alsa etc
  MISSING_DEPENDENCY=$1

  if test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.cygwin"; then
    cygwin_help $MISSING_DEPENDENCY
  elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
    msys_help $MISSING_DEPENDENCY
  else
    PKGHANDLER_COMMAND=

    case $PKGHANDLER in
      apt-get)
        apt_help     $MISSING_DEPENDENCY ;;
      yum)
        yum_help     $MISSING_DEPENDENCY ;;
      port)
        port_help    $MISSING_DEPENDENCY ;;
      pkgutil)
        pkgutil_help $MISSING_DEPENDENCY ;;
      pkgadd)
        pkgadd_help  $MISSING_DEPENDENCY ;;
      * )
        break ;;
    esac

    if test "x$PKGHANDLER_COMMAND" != x; then
      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
    fi
  fi
])

cygwin_help() {
  case $1 in
    unzip)
      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P unzip )"
      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
      ;;
    zip)
      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P zip )"
      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
      ;;
    make)
      PKGHANDLER_COMMAND="( cd <location of cygwin setup.exe> && cmd /c setup -q -P make )"
      HELP_MSG="You might be able to fix this by running '$PKGHANDLER_COMMAND'."
      ;;
    freetype)
      if test "x$OPENJDK_TARGET_CPU_BITS" = x32; then
        HELP_MSG="To install freetype, run:
wget \"http://gnuwin32.sourceforge.net/downlinks/freetype.php\" -O /tmp/freetype-setup.exe
chmod +x /tmp/freetype-setup.exe
/tmp/freetype-setup.exe
Follow GUI prompts, and install to default directory \"C:\Program Files (x86)\GnuWin32\".
After installation, locate lib/libfreetype.dll.a and make a copy with the name freetype.dll."
      else
        HELP_MSG="You need to build a 64-bit version of freetype.
This is not readily available.
You can find source code and build instructions on
http://www.freetype.org/
If you put the resulting build in \"C:\Program Files\GnuWin32\", it will be found automatically."
      fi
      ;;
    * )
      break ;;
  esac
}

msys_help() {
  PKGHANDLER_COMMAND=""
}

apt_help() {
  case $1 in
    devkit)
      PKGHANDLER_COMMAND="sudo apt-get install build-essential" ;;
    openjdk)
      PKGHANDLER_COMMAND="sudo apt-get install openjdk-7-jdk" ;;
    alsa)
      PKGHANDLER_COMMAND="sudo apt-get install libasound2-dev" ;;
    cups)
      PKGHANDLER_COMMAND="sudo apt-get install libcups2-dev" ;;
    freetype)
      PKGHANDLER_COMMAND="sudo apt-get install libfreetype6-dev" ;;
    pulse)
      PKGHANDLER_COMMAND="sudo apt-get install libpulse-dev" ;;
    x11)
      PKGHANDLER_COMMAND="sudo apt-get install libX11-dev libxext-dev libxrender-dev libxtst-dev libxt-dev" ;;
    ccache)
      PKGHANDLER_COMMAND="sudo apt-get install ccache" ;;
    * )
      break ;;
  esac
}

yum_help() {
  case $1 in
    devkit)
      PKGHANDLER_COMMAND="sudo yum groupinstall \"Development Tools\"" ;;
    openjdk)
      PKGHANDLER_COMMAND="sudo yum install java-1.7.0-openjdk" ;;
    alsa)
      PKGHANDLER_COMMAND="sudo yum install alsa-lib-devel" ;;
    cups)
      PKGHANDLER_COMMAND="sudo yum install cups-devel" ;;
    freetype)
      PKGHANDLER_COMMAND="sudo yum install freetype-devel" ;;
    pulse)
      PKGHANDLER_COMMAND="sudo yum install pulseaudio-libs-devel" ;;
    x11)
      PKGHANDLER_COMMAND="sudo yum install libXtst-devel libXt-devel libXrender-devel" ;;
    ccache)
      PKGHANDLER_COMMAND="sudo yum install ccache" ;;
    * )
      break ;;
  esac
}

port_help() {
  PKGHANDLER_COMMAND=""
}

pkgutil_help() {
  PKGHANDLER_COMMAND=""
}

pkgadd_help() {
  PKGHANDLER_COMMAND=""
}

AC_DEFUN_ONCE([HELP_PRINT_SUMMARY_AND_WARNINGS],
[
  # 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
])

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