+/* error.h -- main error handling routines
+ *
+ * This code is Copyright (c) 2017, by the authors of nmh. See the
+ * COPYRIGHT file in the root directory of the nmh distribution for
+ * complete copyright information. */
+
+void inform(char *fmt, ...) CHECK_PRINTF(1, 2);
+void advise(const char *, const char *, ...) CHECK_PRINTF(2, 3);
+void adios(const char *, const char *, ...) CHECK_PRINTF(2, 3) NORETURN;
+void die(const char *, ...) CHECK_PRINTF(1, 2) NORETURN;
+void admonish(char *, char *, ...) CHECK_PRINTF(2, 3);
+void advertise(const char *, char *, const char *, va_list) CHECK_PRINTF(3, 0);