testing travis-ci #8

.travis.yml

@@ -14,6 +14,7 @@ addons:
 
 matrix:
   include:
+    # Linux Clang C++17
     - env:
         BUILD_TYPE=Debug
         BIN_DIR=debug
@@ -24,6 +25,28 @@ matrix:
         BIN_DIR=bin
         CC=clang-5.0
         CXX=clang++-5.0
+
+    # Linux GCC C++17
+    - env:
+        BUILD_TYPE=Debug
+        BIN_DIR=debug
+      compiler: gcc
+      before_install:
+        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        - sudo apt-get update -qq
+      install:
+        - sudo apt-get install -qq g++-6
+        - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 90
+    - env:
+        BUILD_TYPE=Release
+        BIN_DIR=bin
+      compiler: gcc
+      before_install:
+        - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+        - sudo apt-get update -qq
+      install:
+        - 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=$BUILD_TYPE ..