private function configureEnv() {
		if ($this->selfEdit) {
			chdir(__DIR__."/../../..");
			\putenv('COMPOSER=composer-mouf.json');
		} else {
			chdir(__DIR__."/../../../../../..");
		}
		
		$composerHome = getenv('COMPOSER_HOME');
		if (!$composerHome) {
			$composerTmpDir = sys_get_temp_dir().'/.mouf_composer/';
			if (function_exists('posix_getpwuid')) {
				$processUser = posix_getpwuid(posix_geteuid());
				$composerTmpDir .= $processUser['name'].'/';
			}
			\putenv('COMPOSER_HOME='.$composerTmpDir);
		}
		
	}