# ===========================================================================

#       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

])