unlink: new module, for Solaris 9 bug

[gnulib.git] / lib / fts_.h

diff --git a/lib/fts_.h b/lib/fts_.h
index ad339ca..0e2d505 100644 (file)
--- a/lib/fts_.h
+++ b/lib/fts_.h
@@ -233,12 +233,30 @@ typedef struct _ftsent {
        char fts_name[1];               /* file name */
 } FTSENT;
 
+#ifndef __GNUC_PREREQ
+# if defined __GNUC__ && defined __GNUC_MINOR__
+#  define __GNUC_PREREQ(maj, min) \
+         ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+# else
+#  define __GNUC_PREREQ(maj, min) 0
+# endif
+#endif
+
+#if __GNUC_PREREQ (3,4)
+# undef __attribute_warn_unused_result__
+# define __attribute_warn_unused_result__ \
+   __attribute__ ((__warn_unused_result__))
+#else
+# define __attribute_warn_unused_result__ /* empty */
+#endif
+
 __BEGIN_DECLS
-FTSENT *fts_children (FTS *, int) __THROW;
-int     fts_close (FTS *) __THROW;
+FTSENT *fts_children (FTS *, int) __THROW __attribute_warn_unused_result__;
+int     fts_close (FTS *) __THROW __attribute_warn_unused_result__;
 FTS    *fts_open (char * const *, int,
-                  int (*)(const FTSENT **, const FTSENT **)) __THROW;
-FTSENT *fts_read (FTS *) __THROW;
+                  int (*)(const FTSENT **, const FTSENT **))
+  __THROW __attribute_warn_unused_result__;
+FTSENT *fts_read (FTS *) __THROW __attribute_warn_unused_result__;
 int     fts_set (FTS *, FTSENT *, int) __THROW;
 __END_DECLS