+ # Latest gcc-4.8, earliest version supported by Travis
+ - os: linux
+ addons:
+ apt:
+ packages:
+ - g++-4.8
+ - gperf
+ - build-essential
+ - bison
+ - flex
+ - libreadline-dev
+ - gawk
+ - tcl-dev
+ - libffi-dev
+ - git
+ - graphviz
+ - xdot
+ - pkg-config
+ - python
+ - python3
+ - libboost-system-dev
+ - libboost-python-dev
+ - libboost-filesystem-dev
+ - zlib1g-dev
+ env:
+ - MATRIX_EVAL="CONFIG=gcc && CC=gcc-4.8 && CXX=g++-4.8"