From b55437ac107ce41dc0bd0da7d658c76f941e4402 Mon Sep 17 00:00:00 2001
From: Yuhong Guo <yuhong.gyh@antfin.com>
Date: Thu, 6 Dec 2018 14:14:01 +0800
Subject: [PATCH] Fix logmailer problem for dynamic lib.

---
 src/logging.cc | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/logging.cc b/src/logging.cc
index 25a30f9..4fddc63 100644
--- a/src/logging.cc
+++ b/src/logging.cc
@@ -156,7 +156,7 @@ GLOG_DEFINE_int32(logemaillevel, 999,
                   "Email log messages logged at this level or higher"
                   " (0 means email all; 3 means email FATAL only;"
                   " ...)");
-GLOG_DEFINE_string(logmailer, "/bin/mail",
+GLOG_DEFINE_string(logmailer, "",
                    "Mailer used to send logging email");
 
 // Compute the default value for --log_dir
@@ -2028,8 +2028,12 @@ static bool SendEmailInternal(const char*dest, const char *subject,
               subject, body, dest);
     }
 
+    string logmailer = FLAGS_logmailer;
+    if (logmailer.empty()) {
+        logmailer = "/bin/mail";
+    }
     string cmd =
-        FLAGS_logmailer + " -s" +
+        logmailer + " -s" +
         ShellEscape(subject) + " " + ShellEscape(dest);
     VLOG(4) << "Mailing command: " << cmd;