m4/ax_prog_javac.m4

   1 # ===========================================================================
   2 #      https://www.gnu.org/software/autoconf-archive/ax_prog_javac.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_PROG_JAVAC
   8 #
   9 # DESCRIPTION
  10 #
  11 #   AX_PROG_JAVAC tests an existing Java compiler. It uses the environment
  12 #   variable JAVAC then tests in sequence various common Java compilers. For
  13 #   political reasons, it starts with the free ones.
  14 #
  15 #   If you want to force a specific compiler:
  16 #
  17 #   - at the configure.in level, set JAVAC=yourcompiler before calling
  18 #   AX_PROG_JAVAC
  19 #
  20 #   - at the configure level, setenv JAVAC
  21 #
  22 #   You can use the JAVAC variable in your Makefile.in, with @JAVAC@.
  23 #
  24 #   *Warning*: its success or failure can depend on a proper setting of the
  25 #   CLASSPATH env. variable.
  26 #
  27 #   TODO: allow to exclude compilers (rationale: most Java programs cannot
  28 #   compile with some compilers like guavac).
  29 #
  30 #   Note: This is part of the set of autoconf M4 macros for Java programs.
  31 #   It is VERY IMPORTANT that you download the whole set, some macros depend
  32 #   on other. Unfortunately, the autoconf archive does not support the
  33 #   concept of set of macros, so I had to break it for submission. The
  34 #   general documentation, as well as the sample configure.in, is included
  35 #   in the AX_PROG_JAVA macro.
  36 #
  37 # LICENSE
  38 #
  39 #   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
  40 #
  41 #   This program is free software; you can redistribute it and/or modify it
  42 #   under the terms of the GNU General Public License as published by the
  43 #   Free Software Foundation; either version 2 of the License, or (at your
  44 #   option) any later version.
  45 #
  46 #   This program is distributed in the hope that it will be useful, but
  47 #   WITHOUT ANY WARRANTY; without even the implied warranty of
  48 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
  49 #   Public License for more details.
  50 #
  51 #   You should have received a copy of the GNU General Public License along
  52 #   with this program. If not, see <https://www.gnu.org/licenses/>.
  53 #
  54 #   As a special exception, the respective Autoconf Macro's copyright owner
  55 #   gives unlimited permission to copy, distribute and modify the configure
  56 #   scripts that are the output of Autoconf when processing the Macro. You
  57 #   need not follow the terms of the GNU General Public License when using
  58 #   or distributing such scripts, even though portions of the text of the
  59 #   Macro appear in them. The GNU General Public License (GPL) does govern
  60 #   all other use of the material that constitutes the Autoconf Macro.
  61 #
  62 #   This special exception to the GPL applies to versions of the Autoconf
  63 #   Macro released by the Autoconf Archive. When you make and distribute a
  64 #   modified version of the Autoconf Macro, you may extend this special
  65 #   exception to the GPL to apply to your modified version as well.
  66
  67 #serial 8
  68
  69 AU_ALIAS([AC_PROG_JAVAC], [AX_PROG_JAVAC])
  70 AC_DEFUN([AX_PROG_JAVAC],[
  71 m4_define([m4_ax_prog_javac_list],["gcj -C" guavac jikes javac])dnl
  72 AS_IF([test "x$JAVAPREFIX" = x],
  73       [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list])],
  74       [test "x$JAVAC" = x && AC_CHECK_PROGS([JAVAC], [m4_ax_prog_javac_list], [], [$JAVAPREFIX/bin])])
  75 m4_undefine([m4_ax_prog_javac_list])dnl
  76 test "x$JAVAC" = x && AC_MSG_ERROR([no acceptable Java compiler found in \$PATH])
  77 AX_PROG_JAVAC_WORKS
  78 AC_PROVIDE([$0])dnl
  79 ])