char *xstrdup(const char *s);
char *xstrndup(const char *s, size_t n);
char *xstrdup(const char *s);
char *xstrndup(const char *s, size_t n);
const char *sym_get_string_default(struct symbol *sym);
struct symbol *sym_check_deps(struct symbol *sym);
struct property *prop_alloc(enum prop_type type, struct symbol *sym);
const char *sym_get_string_default(struct symbol *sym);
struct symbol *sym_check_deps(struct symbol *sym);
struct property *prop_alloc(enum prop_type type, struct symbol *sym);