A different way to try C++ 11

.travis.yml

@@ -1,37 +1,22 @@
-# Use new trusty images, should yield newer compilers and packages
-sudo: required
-dist: precise
 language: cpp
 
 branches:
   only:
     - master
     - develop
-    - feature-travis
- 
-matrix:
-  include:
-    - compiler: gcc
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-          packages:
-            - g++-4.9
-      env: COMPILER=g++-4.9
-    - compiler: clang
-      addons:
-        apt:
-          sources:
-            - ubuntu-toolchain-r-test
-            - llvm-toolchain-precise-3.7
-          packages:
-            - clang-3.7
-      env: COMPILER=clang++-3.7  
+    - feature-travis 
+compiler:
+  - clang
+  - gcc
   
- before_install:
-  - sudo apt-get update
-  - sudo apt-get install build-essential
+before_install:
+  # g++4.8.1
+  - if [ "$CXX" == "g++" ]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; fi
+
+  # clang 3.4
+  - if [ "$CXX" == "clang++" ]; then sudo add-apt-repository -y ppa:h-rayflood/llvm; fi
+
+  - sudo apt-get update -qq
   
 install:
   - sudo apt-get install git libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev
@@ -49,6 +34,7 @@ before_script:
   - cd ../..
 
 script:
+  - $CXX --version
   - mkdir build
   - cd build
   - cmake -D CMAKE_BUILD_TYPE=RELEASE ..