get_install_root
extern char *get_install_root(void);
extern char *get_install_root(void);
if ((instroot = get_install_root()) != NULL) {
if ((instroot = get_install_root()) != NULL) {
if ((instroot = get_install_root()) != NULL) {
if ((instroot = get_install_root()) != NULL) {
extern char *get_install_root(void);