Helper function to generate new xref node based on
        current environment.

def _make_module_refnode(self, builder, fromdocname, name, contnode):
        """Helper function to generate new xref node based on
        current environment.
        """
        # Get additional info for modules.
        docname, synopsis, platform, deprecated = self.data['modules'][name]
        title = name
        if synopsis:
            title += ': ' + synopsis
        if deprecated:
            title += _(' (deprecated)')
        if platform:
            title += ' (' + platform + ')'
        return make_refnode(builder, fromdocname, docname,
                            'module-' + name, contnode, title)