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ant and external jars relative to an environment variable

Subject: ant and external jars relative to an environment variable
From: Robert La Ferla <email@hidden>
Date: Fri, 18 Aug 2006 12:03:49 -0400
Delivered-to: email@hidden
Delivered-to: email@hidden

I have several external jars that are located relative to a directory specified by an environment variable $MYPROJECT. I need to construct a classpath within my build.xml so that javac can compile my project. I do not want to include the external jars in my project - just reference them. It seemed pretty straightforward but I can't seem to get it to work under XCode. I have had some success from the Terminal though. What's the recommended way to do this?

Here's my compile target:

    <target name="compile" description="Compile code">
        <mkdir dir="${bin}"/>
        <mkdir dir="${lib}"/>
        <javac srcdir="${src}" destdir="${bin}"
               source="1.5" target="1.5"
               includeAntRuntime="no"
			   classpath="${myclasspath}"
			   debug="${compile.debug}">
		</javac>
    </target>

One thing I discovered is that a "property" value does not evaluate/ expand other environmental variables. It expects a constant.

e.g. <property name="myclasspath" value=".:${env. MYPROJECT}/endorsed/ xercesImpl.jar:${env. MYPROJECT}/endorsed/jdom.jar"/>

I also tried :

<path id="myclasspath"> <pathelement path=".:${env. MYPROJECT}/endorsed/xercesImpl.jar:$ {env. MYPROJECT}/endorsed/jdom.jar"/> </path>

and then used classpathref="myclasspath" in the javac task but that didn't work either. I also tried using FileSets.

What am I missing?


SYSTEM/VERSION INFO

Mac OS X Intel 10.4.7 and XCode 2.3

% ant -version Apache Ant version 1.6.5 compiled on April 11 2006 % uname -a Darwin localhost 8.7.1 Darwin Kernel Version 8.7.1: Wed Jun 7 16:19:56 PDT 2006; root:xnu-792.9.72.obj~2/RELEASE_I386 i386 i386

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