environment, and to generate an entry NEED_<funcname> in config.h
if they are not found. */
-DEFFUNC(strerror, char*, (), NOTHING)
+DEFFUNC(strerror, char*, (errnoval), int errnoval)
DEFFUNC(psignal, void, (signo, message), unsigned signo AND char *message)
DEFFUNC(basename, char *, (name), CONST char *name)
DEFFUNC(on_exit, void, (f, arg), void (*f)() AND char *arg)
-DEFFUNC(strsignal, char *, (), NOTHING)
+DEFFUNC(strsignal, const char *, (signo), int signo)