-void
-version_etc PARAMS ((FILE *stream,
- const char *command_name, const char *package,
- const char *version, const char *authors));
+extern void version_etc_va (FILE *stream,
+ const char *command_name, const char *package,
+ const char *version, va_list authors);
+
+extern void version_etc (FILE *stream,
+ const char *command_name, const char *package,
+ const char *version,
+ /* const char *author1, ...*/ ...);