From a817c38cc8bb71f4e9e1e87c57fb48f8b5f60b79 Mon Sep 17 00:00:00 2001
From: Kevin Thomas <unparalleled@users.noreply.github.com>
Date: Tue, 27 Mar 2018 15:56:05 -0700
Subject: [PATCH] updated Dockerfile to build successfully by using gcc-5+ need
 to be using gcc-5+ before running make for codecvt

---
 tools/vw-docker/Dockerfile | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/tools/vw-docker/Dockerfile b/tools/vw-docker/Dockerfile
index 232a5b8..f91b55a 100644
--- a/tools/vw-docker/Dockerfile
+++ b/tools/vw-docker/Dockerfile
@@ -20,14 +20,20 @@ RUN yum install -y \
   zlib-devel \
   which
 
-RUN yum group install -y "Development Tools"
+# need to install gcc-5+ for codecvt
+RUN yum install -y centos-release-scl
+RUN yum install -y devtoolset-7
+
 RUN git clone https://github.com/JohnLangford/vowpal_wabbit.git
 RUN cd vowpal_wabbit/
 WORKDIR /vowpal_wabbit
-RUN sh autogen.sh
-RUN ./configure
-RUN make
-RUN make install
+
+# need to be using gcc-5+ before running make
+RUN source scl_source enable devtoolset-7 &&\
+    sh autogen.sh &&\
+    ./configure &&\
+    make &&\
+    make install
 
 WORKDIR /