<?xml version="1.0"?>
<tool_dependency>
    <set_environment version="1.0">
        <environment_variable name="R_SCRIPT_PATH" action="set_to">$REPOSITORY_INSTALL_DIR</environment_variable>   
    </set_environment>
    <package name="R" version="2.15.1">
        <install version="1.0">
            <actions>
                <action type="download_by_url">http://CRAN.R-project.org/src/base/R-2/R-2.15.1.tar.gz</action>
                <action type="shell_command">./configure --prefix=$INSTALL_DIR</action>
                <action type="shell_command">make</action>
                <action type="set_environment">
                    <environment_variable name="PATH" action="prepend_to">$INSTALL_DIR/bin</environment_variable>
                </action>
            </actions>
        </install>
    </package>
</tool_dependency>