From 3349766c690bcea03f9de708374b8e32caf82f10 Mon Sep 17 00:00:00 2001
From: qijun <qijun1994@hotmail.com>
Date: Fri, 11 Aug 2017 10:38:43 +0800
Subject: [PATCH] add TODO comment

---
 Dockerfile | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index c9bda6c2f7b..41b67291242 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -71,7 +71,10 @@ RUN pip install --upgrade pip && \
 RUN apt-get install -y libssl-dev libffi-dev
 RUN pip install certifi urllib3[secure]
 
-# ln -sf to gcc4.8
+# TODO(qijun) The template library Eigen doesn't work well with GCC 5 
+# coming with the default Docker image, so we switch to use GCC 4.8 
+# by default. And I will check Eigen library later.
+
 RUN ln -sf gcc-4.8 /usr/bin/gcc && \
     ln -sf gcc-ar-4.8 /usr/bin/gcc-ar && \
     ln -sf gcc-nm-4.8 /usr/bin/gcc-nm && \
-- 
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