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-# ===========================================================================
-# http://www.gnu.org/software/autoconf-archive/ax_prog_javac.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-# AX_PROG_JAVAC
-#
-# DESCRIPTION
-#
-# AX_PROG_JAVAC tests an existing Java compiler. It uses the environment
-# variable JAVAC then tests in sequence various common Java compilers. For
-# political reasons, it starts with the free ones.
-#
-# If you want to force a specific compiler:
-#
-# - at the configure.in level, set JAVAC=yourcompiler before calling
-# AX_PROG_JAVAC
-#
-# - at the configure level, setenv JAVAC
-#
-# You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
-#
-# *Warning*: its success or failure can depend on a proper setting of the
-# CLASSPATH env. variable.
-#
-# TODO: allow to exclude compilers (rationale: most Java programs cannot
-# compile with some compilers like guavac).
-#
-# Note: This is part of the set of autoconf M4 macros for Java programs.
-# It is VERY IMPORTANT that you download the whole set, some macros depend
-# on other. Unfortunately, the autoconf archive does not support the
-# concept of set of macros, so I had to break it for submission. The
-# general documentation, as well as the sample configure.in, is included
-# in the AX_PROG_JAVA macro.
-#
-# LICENSE
-#
-# Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
-#
-# 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 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.
-
-#serial 7
-
-AU_ALIAS([AC_PROG_JAVAC], [AX_PROG_JAVAC])
-AC_DEFUN([AX_PROG_JAVAC],[
-m4_define([m4_ax_prog_javac_list],["gcj -C" guavac jikes javac])dnl
-AS_IF([test "x$JAVAPREFIX" = x],
- [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list])],
- [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list], [], [$JAVAPREFIX/bin])])
-m4_undefine([m4_ax_prog_javac_list])dnl
-test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
-AX_PROG_JAVAC_WORKS
-AC_PROVIDE([$0])dnl
-])