build: gcc 8

Author: Alex-Werner

.travis.yml

@@ -4,14 +4,14 @@ node_js:
   - '12'
   - '14'
 env:
-  - CXX=g++-4.8 CC=gcc-4.8
+  - CXX=g++-8 CC=gcc-8
 addons:
   apt:
     sources:
       - ubuntu-toolchain-r-test
     packages:
-      - g++-4.8
-      - gcc-4.8
+      - g++-8
+      - gcc-8
       - libzmq3-dev
 
 script: