openat: detect Solaris fchownat bug

[pspp] / lib / version-etc.h

diff --git a/lib/version-etc.h b/lib/version-etc.h
index 078601c409cd80f8da3887f4d715d5fbee501569..8ce02fecb89fe1fa6f1db0e3deadd43986084252 100644 (file)
--- a/lib/version-etc.h
+++ b/lib/version-etc.h
@@ -22,6 +22,15 @@
 # include <stdarg.h>
 # include <stdio.h>
 
+/* The `sentinel' attribute was added in gcc 4.0.  */
+#ifndef ATTRIBUTE_SENTINEL
+# if 4 <= __GNUC__
+#  define ATTRIBUTE_SENTINEL __attribute__ ((__sentinel__))
+# else
+#  define ATTRIBUTE_SENTINEL /* empty */
+# endif
+#endif
+
 extern const char version_etc_copyright[];
 
 /* The three functions below display the --version information in the
@@ -39,28 +48,29 @@ extern const char version_etc_copyright[];
 
    The functions differ in the way they are passed author names: */
 
-/* N_AUTHORS names are supplied in array AUTHORS */
+/* N_AUTHORS names are supplied in array AUTHORS.  */
 extern void version_etc_arn (FILE *stream,
                             const char *command_name, const char *package,
                             const char *version,
                             const char * const * authors, size_t n_authors);
 
-/* Names are passed in the NULL-terminated array AUTHORS */
+/* Names are passed in the NULL-terminated array AUTHORS.  */
 extern void version_etc_ar (FILE *stream,
                            const char *command_name, const char *package,
                            const char *version, const char * const * authors);
 
-/* Names are passed in the NULL-terminated va_list */
+/* Names are passed in the NULL-terminated va_list.  */
 extern void version_etc_va (FILE *stream,
                            const char *command_name, const char *package,
                            const char *version, va_list authors);
 
 /* Names are passed as separate arguments, with an additional
-   NULL argument at the end. */
+   NULL argument at the end.  */
 extern void version_etc (FILE *stream,
                         const char *command_name, const char *package,
                         const char *version,
-                        /* const char *author1, ...*/ ...);
+                        /* const char *author1, ..., NULL */ ...)
+  ATTRIBUTE_SENTINEL;
 
 /* Display the usual `Report bugs to' stanza */
 extern void emit_bug_reporting_address (void);