lasso/m4/dps_libgcj_jar.m4

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##### http://autoconf-archive.cryp.to/dps_libgcj_jar.html
#
# SYNOPSIS
#
# DPS_LIBGCJ_JAR
#
# DESCRIPTION
#
# Locate libgcj.jar so you can place it before everything else when
# using gcj.
#
# LAST MODIFICATION
#
# 2008-01-28
#
# COPYLEFT
#
# Copyright (c) 2008 Duncan Simpson <dps@simpson.demon.co.uk>
#
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
#
# 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([DPS_LIBGCJ_JAR],
[
AC_REQUIRE([AC_EXEEXT])
AC_REQUIRE([AC_PROG_JAVAC])
AC_REQUIRE([AC_PROG_FGREP])
AC_CHECK_PROG(SED, sed)
if test "x$SED" = "x"; then
AC_MSG_WARN([sed not avaiable, so libgcj.jar test skipped])
else
AC_MSG_CHECKING([if $JAVAC is gcj]);
jc=`eval "[echo x$JAVAC | $SED 's/^x.*\\/\\([^/]*\\)\$/x\\1/;s/^ *\\([^ ]*\\) .*$/\\1/;s/"$EXEEXT"$//']"`
if test "x$jc" != "xxgcj"; then
AC_MSG_RESULT(no)
else
AC_MSG_RESULT(yes)
AC_MSG_CHECKING([libgcj.jar location])
save_cp="$CLASSPATH";
unset CLASSPATH;
AC_MSG_CHECKING([gcj default classpath])
cat << \EOF > Test.java
/* [#]line __oline__ "configure" */
public class Test {
}
EOF
lgcj=`eval "[$JAVAC -v -C Test.java 2>&1 | $FGREP \\(system\\) | $SED 's/^ *\\([^ ]*\\) .*$/\\1/;s/\\.jar\\//.jar/']"`;
if test -f Test.class && test "x$lgcj" != "x"; then
AC_MSG_RESULT($lgcj)
$1="$lgcj:"
else
AC_MSG_RESULT(failed)
$1=""
fi
if test "x$save_cp" != "x"; then CLASSPATH="$save_cp"; fi
rm -f Test.java Test.class
fi
fi
])