m4/ax_prog_javac_works.m4

   1 # SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
   2 #
   3 # ===========================================================================
   4 #   https://www.gnu.org/software/autoconf-archive/ax_prog_javac_works.html
   5 # ===========================================================================
   6 #
   7 # SYNOPSIS
   8 #
   9 #   AX_PROG_JAVAC_WORKS
  10 #
  11 # DESCRIPTION
  12 #
  13 #   Internal use ONLY.
  14 #
  15 #   Note: This is part of the set of autoconf M4 macros for Java programs.
  16 #   It is VERY IMPORTANT that you download the whole set, some macros depend
  17 #   on other. Unfortunately, the autoconf archive does not support the
  18 #   concept of set of macros, so I had to break it for submission. The
  19 #   general documentation, as well as the sample configure.in, is included
  20 #   in the AX_PROG_JAVA macro.
  21 #
  22 # LICENSE
  23 #
  24 #   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
  25 #
  26 #   This program is free software; you can redistribute it and/or modify it
  27 #   under the terms of the GNU General Public License as published by the
  28 #   Free Software Foundation; either version 2 of the License, or (at your
  29 #   option) any later version.
  30 #
  31 #   This program is distributed in the hope that it will be useful, but
  32 #   WITHOUT ANY WARRANTY; without even the implied warranty of
  33 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
  34 #   Public License for more details.
  35 #
  36 #   You should have received a copy of the GNU General Public License along
  37 #   with this program. If not, see <https://www.gnu.org/licenses/>.
  38 #
  39 #   As a special exception, the respective Autoconf Macro's copyright owner
  40 #   gives unlimited permission to copy, distribute and modify the configure
  41 #   scripts that are the output of Autoconf when processing the Macro. You
  42 #   need not follow the terms of the GNU General Public License when using
  43 #   or distributing such scripts, even though portions of the text of the
  44 #   Macro appear in them. The GNU General Public License (GPL) does govern
  45 #   all other use of the material that constitutes the Autoconf Macro.
  46 #
  47 #   This special exception to the GPL applies to versions of the Autoconf
  48 #   Macro released by the Autoconf Archive. When you make and distribute a
  49 #   modified version of the Autoconf Macro, you may extend this special
  50 #   exception to the GPL to apply to your modified version as well.
  51
  52 #serial 7
  53
  54 AU_ALIAS([AC_PROG_JAVAC_WORKS], [AX_PROG_JAVAC_WORKS])
  55 AC_DEFUN([AX_PROG_JAVAC_WORKS],[
  56 AC_CACHE_CHECK([if $JAVAC works], ac_cv_prog_javac_works, [
  57 JAVA_TEST=Test.java
  58 CLASS_TEST=Test.class
  59 cat << \EOF > $JAVA_TEST
  60 /* [#]line __oline__ "configure" */
  61 public class Test {
  62 }
  63 EOF
  64 if AC_TRY_COMMAND($JAVAC $JAVACFLAGS $JAVA_TEST) >/dev/null 2>&1; then
  65   ac_cv_prog_javac_works=yes
  66 else
  67   AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log, check the CLASSPATH?)])
  68   echo "configure: failed program was:" >&AS_MESSAGE_LOG_FD
  69   cat $JAVA_TEST >&AS_MESSAGE_LOG_FD
  70 fi
  71 rm -f $JAVA_TEST $CLASS_TEST
  72 ])
  73 AC_PROVIDE([$0])dnl
  74 ])