From 2c8b23e3316c2644aad0502dff40515d308bd2da Mon Sep 17 00:00:00 2001
From: moneromooo-monero <moneromooo-monero@users.noreply.github.com>
Date: Sat, 25 Mar 2017 20:16:44 +0000
Subject: [PATCH] easylogging++: fix logging with static const header only data
 members

---
 external/easylogging++/easylogging++.h | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/external/easylogging++/easylogging++.h b/external/easylogging++/easylogging++.h
index c1daf7a6..a2e75067 100644
--- a/external/easylogging++/easylogging++.h
+++ b/external/easylogging++/easylogging++.h
@@ -3256,7 +3256,19 @@ class Writer : base::NoCopy {
   }
 
   template <typename T>
-  inline Writer& operator<<(const T& log) {
+  inline typename std::enable_if<std::is_integral<T>::value, Writer&>::type
+  operator<<(T log) {
+#if ELPP_LOGGING_ENABLED
+  if (m_proceed) {
+    m_messageBuilder << log;
+  }
+#endif  // ELPP_LOGGING_ENABLED
+  return *this;
+  }
+
+  template <typename T>
+  inline typename std::enable_if<!std::is_integral<T>::value, Writer&>::type
+  operator<<(const T& log) {
 #if ELPP_LOGGING_ENABLED
     if (m_proceed) {
       m_messageBuilder << log;