I'm using a maven plugin for install4j in my project, located here. That plugin lets you pass variables to install4j using the <compilerVariables> section. Here's the relevant section of my pom:

<plugin>
    <groupId>com.google.code.maven-install4j</groupId>
    <artifactId>maven-install4j-plugin</artifactId>
    <version>0.1.1</version>
    <configuration>
        <executable>${devenv.install4jc}</executable>
        <configFile>${basedir}/newinstaller/ehd.install4j</configFile>
        <releaseId>${project.version}</releaseId>
        <attach>false</attach>
        <skipOnMissingExecutable>false</skipOnMissingExecutable>
        <compilerVariables>
            <property>
                <name>m2_home</name>
                <value>${settings.localRepository}</value>
            </property>
        </compilerVariables>
    </configuration>
</plugin>

The problem is that ${settings.localRepository} is not being substituted with the actual directory when I run the plugin. Here's the command line script that install4j is generating:

[INFO] Running the following command for install4j compile: /bin/sh -c /home/zach/install4j/bin/install4jc --release=9.1-SNAPSHOT --destination="/home/zach/projects/java/ehdtrunk/target/install4j" -D m2_home=${settings.localRepository} /home/zach/projects/java/ehdtrunk/newinstaller/ehd.install4j

Is this the fault of the plugin? If so, what needs to change to allow the substitution to happen?