From d34d7098e96134561c9506f846bc7d7104936d7e Mon Sep 17 00:00:00 2001
From: Phuntsok Drak-pa <drakpa@drakpa.fr>
Date: Sun, 8 Apr 2018 15:57:12 +0200
Subject: [PATCH] test

---
 .travis.yml | 32 +++++++++++++++++++++-----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 63b3865..f359af5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,16 @@ matrix:
   include:
     - os: linux
       dist: trusty
-      compiler: g++-6
+      sudo: true
+      compiler: g++
+      before_install:
+        # C++17
+        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        - sudo apt-get update -qq
+      install:
+        # C++17
+        - sudo apt-get install -qq g++-6
+        - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 90
       script:
         - cd build
         - cmake -DCMAKE_BUILD_TYPE=Debug ..
@@ -15,15 +24,22 @@ matrix:
       compiler: clang
       script:
         - cd build
-        - cmake --version
         - cmake -DCMAKE_BUILD_TYPE=Debug ..
         - make -j
     - os: linux
       dist: trusty
-      compiler: g++-6
+      sudo: true
+      compiler: g++
+      before_install:
+        # C++17
+        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        - sudo apt-get update -qq
+      install:
+        # C++17
+        - sudo apt-get install -qq g++-6
+        - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 90
       script:
         - cd build
-        - cmake --version
         - cmake -DCMAKE_BUILD_TYPE=Release ..
         - make -j
     - os: linux
@@ -31,17 +47,11 @@ matrix:
       compiler: clang
       script:
         - cd build
-        - cmake --version
         - cmake -DCMAKE_BUILD_TYPE=Release ..
         - make -j
 
-addons:
-  apt:
-    sources:
-    - ubuntu-toolchain-r-test
-    packages:
-    - g++-6
 
+            
 notifications:
   email:
     - phundrak@phundrak.fr