gxx version check

Author: pythoneer

.travis.yml

@@ -6,6 +6,8 @@ before_install:
     - if [ "$CXX" = "g++" ]; then sudo apt-get install -qq g++-4.8; fi
     - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
 script:
+    - g++ --version
+    - gcc --version
     - qmake -qt=qt5 -v
     - qmake -qt=qt5 XInputSimulator/
     - make