g++ 6

.travis.yml

@@ -17,15 +17,20 @@ addons:
   ssh_known_hosts:
   - github.com
   apt:
+    sources:
+      - ubuntu-toolchain-r-test
     packages:
-    - libfreetype6-dev
-    - libevent-dev
-    - libsqlite3-dev
-    - libirrlicht-dev
-    - libgl1-mesa-dev
-    - libglu-dev
+      - gcc-6
+      - g++-6
+      - libfreetype6-dev
+      - libevent-dev
+      - libsqlite3-dev
+      - libirrlicht-dev
+      - libgl1-mesa-dev
+      - libglu-dev
 before_install:
 - git submodule update --init --recursive
+- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo ln -s /usr/bin/gcc-6 /usr/local/bin/gcc; sudo ln -s /usr/bin/g++-6 /usr/local/bin/g++; fi
 - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; brew install freetype libevent
   sqlite lua dylibbundler; curl --location --retry 5 https://github.com/premake/premake-core/releases/download/v5.0.0-alpha12/premake-5.0.0-alpha12-macosx.tar.gz
   | tar zfx -; fi