Fix travis: test

Bakar Chargeishvili · Bakar Chargeishvili · commit 67cdb24214b8 · 2018-08-14T18:29:13.000+04:00
diff --git a/.travis.yml b/.travis.yml
@@ -34,7 +34,8 @@ install:
   - sudo add-apt-repository ppa:ubuntu-toolchain-r/test -y
   - sudo apt-get update
   - sudo apt-get install build-essential
-  - sudo apt-get install gcc-4.9
+  - sudo apt-get install gcc-4.9 g++-4.9
+  - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-4.9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-4.9
   - sudo apt-get install libstdc++6
   - cp -v /usr/lib/x86_64-linux-gnu/libstdc++.so.6 /home/travis/miniconda/envs/testenv/bin/../lib/
     #- rm $CONDA_PREFIX/lib/libstdc++.so.6
