try removing gcc ver

Author: bt2901

.travis.yml

@@ -47,8 +47,8 @@ before_install:
   # configure ccache
   # code from https://github.com/urho3d/Urho3D/blob/master/.travis.yml
   - export PATH=$(whereis -b ccache |grep -o '\S*lib\S*'):$PATH
-  - export CXX=g++-$GCC_VER
-  - ln -s $(which ccache) $HOME/g++-$GCC_VER && export PATH=$HOME:$PATH
+  - export CXX=g++
+  - ln -s $(which ccache) $HOME/g++ && export PATH=$HOME:$PATH
   - ./home/travis/g++-4.8
 
 install: