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##### http://autoconf-archive.cryp.to/ac_check_java_home.html
#
# SYNOPSIS
#
# AC_CHECK_JAVA_HOME
#
# DESCRIPTION
#
# Check for Sun Java (JDK / JRE) installation, where the 'java' VM is
# in. If found, set environment variable JAVA_HOME = Java
# installation home, else left JAVA_HOME untouch, which in most case
# means JAVA_HOME is empty.
#
# LAST MODIFICATION
#
# 2002-10-10
#
# COPYLEFT
#
# Copyright (c) 2002 Gleen Salmon <gleensalmon@yahoo.com>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program 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 for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright
# owner gives unlimited permission to copy, distribute and modify the
# configure scripts that are the output of Autoconf when processing
# the Macro. You need not follow the terms of the GNU General Public
# License when using or distributing such scripts, even though
# portions of the text of the Macro appear in them. The GNU General
# Public License (GPL) does govern all other use of the material that
# constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the
# Autoconf Macro released by the Autoconf Macro Archive. When you
# make and distribute a modified version of the Autoconf Macro, you
# may extend this special exception to the GPL to apply to your
# modified version as well.
AC_DEFUN([AC_CHECK_JAVA_HOME],[
AC_REQUIRE([AC_EXEEXT])dnl
TRY_JAVA_HOME=`ls -dr /usr/java/* 2> /dev/null | head -n 1`
if test x$TRY_JAVA_HOME != x; then
PATH=$PATH:$TRY_JAVA_HOME/bin
fi
AC_PATH_PROG(JAVA_PATH_NAME, java$EXEEXT)
if test x$JAVA_PATH_NAME != x; then
JAVA_HOME=`echo $JAVA_PATH_NAME | sed "s/\(.*\)[[/]]bin[[/]]java$EXEEXT$/\1/"`
fi;dnl
])
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