.travis.yml

# Travis defines and exports CC and CXX *after* we have defined our
# environment variables via 'env'.  So, do not use 'env' to define
# them.  Instead, put their definitions in MATRIX_EVAL, which we eval
# after the definitions from Travis.

language: cpp

matrix:
  include:
    - name: "GCC 7 -O3"
      os: linux
      dist: xenial
      addons:
        apt:
          sources:
            - ubuntu-toolchain-r-test
          packages:
            - g++-7
      env:
        - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7 && CONFIGUREFLAGS='CPPFLAGS=-DNDEBUG CFLAGS=-O3 CXXFLAGS=-O3'"

before_install:
  - eval "$MATRIX_EVAL"
  - env
  - sudo apt-get update -qq
  - sudo apt-get install -qq autoconf automake autopoint flex gettext graphviz help2man m4 texinfo
  - autoconf --version
  - automake --version
  - autopoint --version
  - $CC --version
  - $CXX --version
  - flex --version
  - gettext --version
  - help2man --version
  - ld --version
  - makeinfo --version

script:
  - git tag -l
  - ./bootstrap
  - ./configure CC="$CC" CXX="$CXX" $CONFIGUREFLAGS || { cat config.log && false; }
  - make -j2 $MAKE_ARGS
  - make check VERBOSE=1