Here is a summary of the main macros:
AX_PROG_JAVAC: finds a Java compiler.
AX_PROG_JAVA: finds a Java virtual machine.
AX_CHECK_CLASS: finds if we have the given class (beware of CLASSPATH!).
AX_CHECK_RQRD_CLASS: finds if we have the given class and stops otherwise.
AX_TRY_COMPILE_JAVA: attempt to compile user given source.
AX_TRY_RUN_JAVA: attempt to compile and run user given source.
AX_JAVA_OPTIONS: adds Java configure options.
AX_PROG_JAVA tests an existing Java virtual machine. It uses the environment variable JAVA then tests in sequence various common Java virtual machines. For political reasons, it starts with the free ones. You *must* call [AX_PROG_JAVAC] before.
If you want to force a specific VM:
- at the configure.in level, set JAVA=yourvm before calling AX_PROG_JAVA
(but after AC_INIT)
- at the configure level, setenv JAVA
You can use the JAVA variable in your Makefile.in, with @JAVA@.
*Warning*: its success or failure can depend on a proper setting of the CLASSPATH env. variable.
TODO: allow to exclude virtual machines (rationale: most Java programs cannot run with some VM like kaffe).
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.
A Web page, with a link to the latest CVS snapshot is at <http://www.internatif.org/bortzmeyer/autoconf-Java/>.
This is a sample configure.in Process this file with autoconf to produce a configure script.
dnl Checks for programs. AC_CHECK_CLASSPATH AX_PROG_JAVAC AX_PROG_JAVA
dnl Checks for classes AX_CHECK_RQRD_CLASS(org.xml.sax.Parser) AX_CHECK_RQRD_CLASS(com.jclark.xml.sax.Driver)
Download the latest version of ax_prog_java.m4 or browse the macro’s revision history.
Copyright © 2008 Stephane Bortzmeyer email@example.com
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.
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