rem: int poptReadDefaultConfig(poptContext con,  int useEnv)
add: int poptReadDefaultConfig(poptContext con,  UNUSED(int useEnv))
context: int poptReadDefaultConfig(poptContext con, /*@unused@*/ int useEnv){    char * fn, * home;    int rc;    /*@-type@*/    if (!con->appName) return 0;    /*@=type@*/    rc = poptReadConfigFile(con, "/etc/popt");    if (rc) return rc;    if (getuid() != geteuid()) return 0;    if ((home = getenv("HOME"))) {	fn = alloca(strlen(home) + 20);	strcpy(fn, home);	strcat(fn, "/.popt");	rc = poptReadConfigFile(con, fn);	if (rc) return rc;    }    return 0;}