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##### http://autoconf-archive.cryp.to/ac_prog_javac.html
#
# SYNOPSIS
#
# AC_PROG_JAVAC
#
# DESCRIPTION
#
# AC_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
# AC_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 AC_PROG_JAVA macro.
#
# LAST MODIFICATION
#
# 2000-07-19
#
# COPYLEFT
#
# Copyright (c) 2000 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 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_PROG_JAVAC],[
AC_REQUIRE([AC_EXEEXT])dnl
if test "x$JAVAPREFIX" = x; then
test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" jikes$EXEEXT guavac$EXEEXT javac$EXEEXT)
else
test "x$JAVAC" = x && AC_CHECK_PROGS(JAVAC, "gcj$EXEEXT -C" jikes$EXEEXT guavac$EXEEXT javac$EXEEXT, $JAVAPREFIX)
fi
true
AC_PROG_JAVAC_WORKS
AC_PROVIDE([$0])dnl
])
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