2016-02-29 10:43:00 +08:00
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# ===========================================================================
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2019-04-05 01:59:43 +08:00
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# https://www.gnu.org/software/autoconf-archive/ax_prog_java.html
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2016-02-29 10:43:00 +08:00
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_PROG_JAVA
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#
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# DESCRIPTION
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#
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# Here is a summary of the main macros:
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#
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# AX_PROG_JAVAC: finds a Java compiler.
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#
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# AX_PROG_JAVA: finds a Java virtual machine.
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#
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# AX_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!).
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#
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# AX_CHECK_RQRD_CLASS: finds if we have the given class and stops
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# otherwise.
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#
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# AX_TRY_COMPILE_JAVA: attempt to compile user given source.
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#
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# AX_TRY_RUN_JAVA: attempt to compile and run user given source.
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#
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# AX_JAVA_OPTIONS: adds Java configure options.
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#
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# AX_PROG_JAVA tests an existing Java virtual machine. It uses the
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# environment variable JAVA then tests in sequence various common Java
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# virtual machines. For political reasons, it starts with the free ones.
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# You *must* call [AX_PROG_JAVAC] before.
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#
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# If you want to force a specific VM:
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#
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# - at the configure.in level, set JAVA=yourvm before calling AX_PROG_JAVA
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#
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# (but after AC_INIT)
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#
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# - at the configure level, setenv JAVA
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#
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# You can use the JAVA variable in your Makefile.in, with @JAVA@.
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#
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# *Warning*: its success or failure can depend on a proper setting of the
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# CLASSPATH env. variable.
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#
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# TODO: allow to exclude virtual machines (rationale: most Java programs
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# cannot run with some VM like kaffe).
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#
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# Note: This is part of the set of autoconf M4 macros for Java programs.
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# It is VERY IMPORTANT that you download the whole set, some macros depend
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# on other. Unfortunately, the autoconf archive does not support the
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# concept of set of macros, so I had to break it for submission.
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#
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# A Web page, with a link to the latest CVS snapshot is at
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# <http://www.internatif.org/bortzmeyer/autoconf-Java/>.
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#
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# This is a sample configure.in Process this file with autoconf to produce
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# a configure script.
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#
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# AC_INIT(UnTag.java)
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#
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# dnl Checks for programs.
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# AC_CHECK_CLASSPATH
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# AX_PROG_JAVAC
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# AX_PROG_JAVA
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#
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# dnl Checks for classes
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# AX_CHECK_RQRD_CLASS(org.xml.sax.Parser)
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# AX_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver)
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#
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# AC_OUTPUT(Makefile)
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#
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# LICENSE
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#
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# Copyright (c) 2008 Stephane Bortzmeyer <bortzmeyer@pasteur.fr>
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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# Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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2019-04-05 01:59:43 +08:00
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# with this program. If not, see <https://www.gnu.org/licenses/>.
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2016-02-29 10:43:00 +08:00
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#
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# As a special exception, the respective Autoconf Macro's copyright owner
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# gives unlimited permission to copy, distribute and modify the configure
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# scripts that are the output of Autoconf when processing the Macro. You
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# need not follow the terms of the GNU General Public License when using
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# or distributing such scripts, even though portions of the text of the
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# Macro appear in them. The GNU General Public License (GPL) does govern
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# all other use of the material that constitutes the Autoconf Macro.
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#
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# This special exception to the GPL applies to versions of the Autoconf
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# Macro released by the Autoconf Archive. When you make and distribute a
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# modified version of the Autoconf Macro, you may extend this special
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# exception to the GPL to apply to your modified version as well.
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2019-04-05 01:59:43 +08:00
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#serial 10
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2016-02-29 10:43:00 +08:00
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AU_ALIAS([AC_PROG_JAVA], [AX_PROG_JAVA])
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AC_DEFUN([AX_PROG_JAVA],[
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m4_define([m4_ax_prog_java_list], [kaffe java])dnl
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AS_IF([test "x$JAVAPREFIX" = x],
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[test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list])],
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[test x$JAVA = x && AC_CHECK_PROGS([JAVA], [m4_ax_prog_java_list], [], [$JAVAPREFIX/bin])])
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test x$JAVA = x && AC_MSG_ERROR([no acceptable Java virtual machine found in \$PATH])
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m4_undefine([m4_ax_prog_java_list])dnl
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AX_PROG_JAVA_WORKS
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AC_PROVIDE([$0])dnl
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])
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