m4/ax_prog_java.m4

   1 # ===========================================================================
   2 #       https://www.gnu.org/software/autoconf-archive/ax_prog_java.html
   3 # ===========================================================================
   4 #
   5 # SYNOPSIS
   6 #
   7 #   AX_PROG_JAVA
   8 #
   9 # DESCRIPTION
  10 #
  11 #   Here is a summary of the main macros:
  12 #
  13 #   AX_PROG_JAVAC: finds a Java compiler.
  14 #
  15 #   AX_PROG_JAVA: finds a Java virtual machine.
  16 #
  17 #   AX_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!).
  18 #
  19 #   AX_CHECK_RQRD_CLASS: finds if we have the given class and stops
  20 #   otherwise.
  21 #
  22 #   AX_TRY_COMPILE_JAVA: attempt to compile user given source.
  23 #
  24 #   AX_TRY_RUN_JAVA: attempt to compile and run user given source.
  25 #
  26 #   AX_JAVA_OPTIONS: adds Java configure options.
  27 #
  28 #   AX_PROG_JAVA tests an existing Java virtual machine. It uses the
  29 #   environment variable JAVA then tests in sequence various common Java
  30 #   virtual machines. For political reasons, it starts with the free ones.
  31 #   You *must* call [AX_PROG_JAVAC] before.
  32 #
  33 #   If you want to force a specific VM:
  34 #
  35 #   - at the configure.in level, set JAVA=yourvm before calling AX_PROG_JAVA
  36 #
  37 #     (but after AC_INIT)
  38 #
  39 #   - at the configure level, setenv JAVA
  40 #
  41 #   You can use the JAVA variable in your Makefile.in, with @JAVA@.
  42 #
  43 #   *Warning*: its success or failure can depend on a proper setting of the
  44 #   CLASSPATH env. variable.
  45 #
  46 #   TODO: allow to exclude virtual machines (rationale: most Java programs
  47 #   cannot run with some VM like kaffe).
  48 #
  49 #   Note: This is part of the set of autoconf M4 macros for Java programs.
  50 #   It is VERY IMPORTANT that you download the whole set, some macros depend
  51 #   on other. Unfortunately, the autoconf archive does not support the
  52 #   concept of set of macros, so I had to break it for submission.
  53 #
  54 #   A Web page, with a link to the latest CVS snapshot is at
  55 #   <http://www.internatif.org/bortzmeyer/autoconf-Java/>.
  56 #
  57 #   This is a sample configure.in Process this file with autoconf to produce
  58 #   a configure script.
  59 #
  60 #     AC_INIT(UnTag.java)
  61 #
  62 #     dnl Checks for programs.
  63 #     AC_CHECK_CLASSPATH
  64 #     AX_PROG_JAVAC
  65 #     AX_PROG_JAVA
  66 #
  67 #     dnl Checks for classes
  68 #     AX_CHECK_RQRD_CLASS(org.xml.sax.Parser)
  69 #     AX_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver)
  70 #
  71 #     AC_OUTPUT(Makefile)
  72 #
  73 # LICENSE
  74 #
  75 #   Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
  76 #
  77 #   This program is free software; you can redistribute it and/or modify it
  78 #   under the terms of the GNU General Public License as published by the
  79 #   Free Software Foundation; either version 2 of the License, or (at your
  80 #   option) any later version.
  81 #
  82 #   This program is distributed in the hope that it will be useful, but
  83 #   WITHOUT ANY WARRANTY; without even the implied warranty of
  84 #   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
  85 #   Public License for more details.
  86 #
  87 #   You should have received a copy of the GNU General Public License along
  88 #   with this program. If not, see <https://www.gnu.org/licenses/>.
  89 #
  90 #   As a special exception, the respective Autoconf Macro's copyright owner
  91 #   gives unlimited permission to copy, distribute and modify the configure
  92 #   scripts that are the output of Autoconf when processing the Macro. You
  93 #   need not follow the terms of the GNU General Public License when using
  94 #   or distributing such scripts, even though portions of the text of the
  95 #   Macro appear in them. The GNU General Public License (GPL) does govern
  96 #   all other use of the material that constitutes the Autoconf Macro.
  97 #
  98 #   This special exception to the GPL applies to versions of the Autoconf
  99 #   Macro released by the Autoconf Archive. When you make and distribute a
 100 #   modified version of the Autoconf Macro, you may extend this special
 101 #   exception to the GPL to apply to your modified version as well.
 102
 103 #serial 10
 104
 105 AU_ALIAS([AC_PROG_JAVA], [AX_PROG_JAVA])
 106 AC_DEFUN([AX_PROG_JAVA],[
 107 m4_define([m4_ax_prog_java_list], [kaffe java])dnl
 108 AS_IF([test "x$JAVAPREFIX" = x],
 109       [test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list])],
 110       [test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list], [], [$JAVAPREFIX/bin])])
 111 test x$JAVA = x && AC_MSG_ERROR([no acceptable Java virtual machine found in \$PATH])
 112 m4_undefine([m4_ax_prog_java_list])dnl
 113 AX_PROG_JAVA_WORKS
 114 AC_PROVIDE([$0])dnl
 115 ])