Bump the compiler required in .travis.yml

.travis.yml

@@ -10,8 +10,10 @@ compiler:
   - clang
 
 env:
-  - BUILD_TYPE=Debug EXTRA_CHECKS=ON TRACE=ON
-  - BUILD_TYPE=Release EXTRA_CHECKS=OFF TRACE=OFF
+  - BUILD_TYPE=Debug EXTRA_CHECKS=ON TRACE=ON CXX=g++-5 CC=gcc-5
+  - BUILD_TYPE=Release EXTRA_CHECKS=OFF TRACE=OFF CXX=g++-5 CC=gcc-5
+  - BUILD_TYPE=Debug EXTRA_CHECKS=ON TRACE=ON CXX=clang++-3.5 CC=clang-3.5
+  - BUILD_TYPE=Release EXTRA_CHECKS=OFF TRACE=OFF CXX=clang++-3.5 CC=clang-3.5
 
 cache:
   apt: true
@@ -20,18 +22,17 @@ addons:
   apt:
     sources:
       - sourceline: 'ppa:ubuntu-toolchain-r/test'
+      - sourceline: 'llvm-toolchain-precise-3.5'
     packages:
       - cmake
-      - g++-4.9
-
-before_install:
-  # Set the newer gcc on Linux
-  - export CXX="g++-4.9"
-  - export CC="gcc-4.9"
+      - g++-5
+      - clang-3.5
 
 script:
   - mkdir build 
   - cd build
+  - $CC --version
+  - $CXX --version
   - cmake .. -DCMAKE_BUILD_TYPE=${BUILD_TYPE} -DANKI_EXTRA_CHECKS=${EXTRA_CHECKS} -DANKI_BUILD_TOOLS=ON -DANKI_BUILD_TESTS=ON -DANKI_ENABLE_TRACE=${TRACE}
   - make -j 2
 
@@ -41,4 +42,3 @@ branches:
 
 notifications:
   email: false
-