WIP maybe fix weird wrong CI issue

Author: hannes-steffenhagen-diffblue

.travis.yml

@@ -330,6 +330,7 @@ jobs:
       before_install:
         - mkdir bin ; ln -s /usr/bin/gcc-5 bin/gcc
         - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-5 90
+        - sudo update-alternative --install /usr/bin/gcc gcc /usr/bin/gcc-5 90
         - g++ --version
       # Coverity runs as part of before_script
       env: