From e982b574a5e8878fb50f8f75c179474f2b1661dd Mon Sep 17 00:00:00 2001
From: Adam Weiss <adam@signal11.com>
Date: Wed, 10 Sep 2014 12:26:59 -0400
Subject: [PATCH] Use explicit fflush() instead of setvbuf()

Flushing after every line when printing to console is desirable when
running with systemd but setvbuf() has slightly different semantics
on Windows that causes warnings.  Just do an explicit fflush() after
each line print to console instead.
---
 src/init.cpp | 1 -
 src/util.cpp | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/init.cpp b/src/init.cpp
index 31f64878f..2e18f485b 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -630,7 +630,6 @@ bool AppInit2(boost::thread_group& threadGroup)
     fPrintToConsole = GetBoolArg("-printtoconsole", false);
     fLogTimestamps = GetBoolArg("-logtimestamps", true);
     fLogIPs = GetBoolArg("-logips", false);
-    setvbuf(stdout, NULL, _IOLBF, 0);
 #ifdef ENABLE_WALLET
     bool fDisableWallet = GetBoolArg("-disablewallet", false);
 #endif
diff --git a/src/util.cpp b/src/util.cpp
index 5a4e187f9..20aff49c8 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -211,6 +211,7 @@ int LogPrintStr(const std::string &str)
     {
         // print to console
         ret = fwrite(str.data(), 1, str.size(), stdout);
+        fflush(stdout);
     }
     else if (fPrintToDebugLog && AreBaseParamsConfigured())
     {