--- /dev/null
+__must_check __malloc void *dss_realloc(void *p, size_t size);
+__must_check __malloc void *dss_malloc(size_t size);
+__must_check __malloc void *dss_calloc(size_t size);
+__must_check __printf_1_2 __malloc char *make_message(const char *fmt, ...);
+__must_check __malloc char *dss_strdup(const char *s);
+__must_check __malloc char *get_homedir(void);
+int dss_atoi64(const char *str, int64_t *value);
+__must_check __malloc char *dss_logname(void);
+unsigned split_args(char *args, char *** const argv_ptr, const char *delim);
+
+
+/** \cond LLONG_MAX and LLONG_LIN might not be defined. */
+#ifndef LLONG_MAX
+#define LLONG_MAX (1 << (sizeof(long) - 1))
+#endif
+#ifndef LLONG_MIN
+#define LLONG_MIN (-LLONG_MAX - 1LL)
+#endif
+/** \endcond */
+