From f46f128b9a60765c68dd9fbe66d7f7778914900b Mon Sep 17 00:00:00 2001
From: Gregory Maxwell <greg@xiph.org>
Date: Sun, 15 Sep 2013 20:14:06 -0700
Subject: [PATCH] More fixes for blockchain corruption on OSX.

As we'd previously learned, OSX's fsync is a data eating lie.

Since 0.8.4 we're still getting some reports of disk corruption on
 OSX but now all of it looks like the block files have gotten out of
 sync with the database. It turns out that we were still using fsync()
 on the block files, so this isn't surprising.
---
 src/util.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util.cpp b/src/util.cpp
index 4c9b897f575..481fc763cca 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1147,6 +1147,8 @@ void FileCommit(FILE *fileout)
 #else
     #if defined(__linux__) || defined(__NetBSD__)
     fdatasync(fileno(fileout));
+    #elif defined(__APPLE__) && defined(F_FULLFSYNC)
+    fcntl(fileno(fileout), F_FULLFSYNC, 0);
     #else
     fsync(fileno(fileout));
     #endif