Index: libs/libmythtv/ThreadedFileWriter.cpp
===================================================================
--- libs/libmythtv/ThreadedFileWriter.cpp	(revision 20819)
+++ libs/libmythtv/ThreadedFileWriter.cpp	(working copy)
@@ -30,6 +30,7 @@
 #if !HAVE_SYNC_FILE_RANGE
 extern int sync_file_range(int fd, off64_t offset, off64_t nbytes,
                            unsigned int flags);
+#define SYNC_FILE_RANGE_WRITE 2
 #endif
 
 #define LOC QString("TFW: ")
Index: libs/libmythtv/RingBuffer.cpp
===================================================================
--- libs/libmythtv/RingBuffer.cpp	(revision 20819)
+++ libs/libmythtv/RingBuffer.cpp	(working copy)
@@ -13,6 +13,7 @@
 
 #if !HAVE_POSIX_FADVISE
 extern int posix_fadvise(int fd, off_t offset, off_t len, int advice);
+#define POSIX_FADV_SEQUENTIAL 2
 #endif
 
 // Qt headers