From 3baa7032562ddd42cbbc21086912331702092eca Mon Sep 17 00:00:00 2001
From: Kyle Sanderson <kyle.leet@gmail.com>
Date: Tue, 17 Jul 2018 13:07:55 -0700
Subject: [PATCH] NPOTB: Fix clang-3.9 failures with Travis-CI (#851)

fix clang-3.9 failures, maybe; hopefully. I forget why this was broken.
---
 .travis.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 234f8c37..bd76c5d5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ addons:
   apt:
     sources:
       - ubuntu-toolchain-r-test
+      - llvm-toolchain-trusty-3.9
       - llvm-toolchain-trusty-4.0
       - llvm-toolchain-trusty-5.0
     packages:
@@ -23,6 +24,7 @@ addons:
 #      - clang-5.0
 #      - g++-6
 #      - g++-6-multilib
+      - clang-3.9
       - g++-4.8-multilib
       - g++-4.8
       - g++-4.9-multilib