Zephir\Compiler::processAddSources PHP Method

    protected function processAddSources($sources, $project)
    {
        $groupSources = array();
        foreach ($sources as $source) {
            $dirName = str_replace(DIRECTORY_SEPARATOR, '/', dirname($source));
            if (!isset($groupSources[$dirName])) {
                $groupSources[$dirName] = array();
            }
            $groupSources[$dirName][] = basename($source);
        }
        $groups = array();
        foreach ($groupSources as $dirname => $files) {
            $groups[] = 'ADD_SOURCES(configure_module_dirname + "/' . $dirname . '", "' . join(' ', $files) . '", "' . $project . '");';
        }
        return $groups;
    }