From effbfe09c36570362b864e89be1eb896a960eeb1 Mon Sep 17 00:00:00 2001
From: pantor <lars.berscheid@online.de>
Date: Mon, 19 Feb 2018 23:07:50 +0100
Subject: [PATCH] try clang 4

---
 .travis.yml | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 8bd76df..5b0cf29 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,11 +12,11 @@ matrix:
     ### Coveralls ###
     - os: linux
       compiler: gcc
+      env: COMPILER=g++-5
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test']
           packages: g++-5
-      env: COMPILER=g++-5
       before_install:
         - pip install --user cpp-coveralls
       after_success:
@@ -25,51 +25,59 @@ matrix:
 
     - os: linux
       compiler: gcc
+      env: COMPILER=g++-4.9
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test']
           packages: g++-4.9
-      env: COMPILER=g++-4.9
 
     - os: linux
       compiler: gcc
+      env: COMPILER=g++-5
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test']
           packages: g++-5
-      env: COMPILER=g++-5
 
     - os: linux
       compiler: gcc
+      env: COMPILER=g++-6
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test']
           packages: g++-6
-      env: COMPILER=g++-6
 
     - os: linux
       compiler: gcc
+      env: COMPILER=g++-7
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test']
           packages: g++-7
-      env: COMPILER=g++-7
 
     - os: linux
       compiler: clang
+      env: COMPILER=clang++-3.6
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.6']
           packages: clang-3.6
-      env: COMPILER=clang++-3.6
 
     - os: linux
       compiler: clang
+      env: COMPILER=clang++-3.7
       addons:
         apt:
           sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-precise-3.7']
           packages: clang-3.7
-      env: COMPILER=clang++-3.7
+
+    - os: linux
+      compiler: clang
+      env: COMPILER=clang++-4.0
+      addons:
+        apt:
+          sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-4.0']
+          packages: ['g++-6', 'clang-4.0']
 
     - os: osx
       osx_image: xcode7.3