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-rw-r--r--include/stdio.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/stdio.h b/include/stdio.h
index 0915da909..a48fa9b78 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -110,7 +110,10 @@ typedef __STDIO_fpos64_t fpos64_t;
#define SEEK_SET 0 /* Seek from beginning of file. */
#define SEEK_CUR 1 /* Seek from current position. */
#define SEEK_END 2 /* Seek from end of file. */
-
+#ifdef __USE_GNU
+# define SEEK_DATA 3 /* Seek to next data. */
+# define SEEK_HOLE 4 /* Seek to next hole. */
+#endif
#if defined __USE_SVID || defined __USE_XOPEN
/* Default path prefix for `mkstemp'. */