Linux : redis 2.6 make -> replication.c:380: undefined reference to `sync_file_range'

I got this error during fresh git co 2.6 && make

```
uname -a 
Linux  2.6.18-164.el5 #1  x86_64 x86_64 x86_64 GNU/Linux
```

Full Error :

```
replication.o: In function `readSyncBulkPayload':
/home/salimane/redis/src/replication.c:380: undefined reference to `sync_file_range'
```

Thanks
