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Diffstat (limited to 'libc/sysdeps/linux/x86_64/bits')
-rw-r--r--libc/sysdeps/linux/x86_64/bits/fcntl.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/libc/sysdeps/linux/x86_64/bits/fcntl.h b/libc/sysdeps/linux/x86_64/bits/fcntl.h
index f69bcf60e..7114eb87e 100644
--- a/libc/sysdeps/linux/x86_64/bits/fcntl.h
+++ b/libc/sysdeps/linux/x86_64/bits/fcntl.h
@@ -212,13 +212,14 @@ struct flock64
__BEGIN_DECLS
-#if 0 /*def __USE_GNU*/
+#ifdef __USE_GNU
/* Provide kernel hint to read ahead. */
extern ssize_t readahead (int __fd, __off64_t __offset, size_t __count)
__THROW;
+#if 0
/* Selective file content synch'ing. */
extern int sync_file_range (int __fd, __off64_t __from, __off64_t __to,
unsigned int __flags);
@@ -235,6 +236,7 @@ extern int splice (int __fdin, int __fdout, size_t __len, unsigned int __flags)
/* In-kernel implementation of tee for pipe buffers. */
extern int tee (int __fdin, int __fdout, size_t __len, unsigned int __flags)
__THROW;
+#endif
#endif