openrisc linux travis build

dist: trusty    # trusty needed for libmpc3
sudo: false
language: c
branches:
  - travis
addons:
  apt:
    sources:
      - ubuntu-toolchain-r-test # get gcc-6
    packages:
      - build-essential
      - gcc-6                   # libs needed for or1k-linux- toolchain
      - g++-6
      - bc                      # basic for linux build
      - libmpc3                 # needed for or1k-linux- toolchain
env:
  matrix:
    - ARCH=openrisc    CONFIG=defconfig     CROSS_COMPILE=or1k-linux-
    - ARCH=openrisc    CONFIG=allnoconfig   CROSS_COMPILE=or1k-linux-
    - ARCH=openrisc    CONFIG=allyesconfig  CROSS_COMPILE=or1k-linux-
    - ARCH=openrisc    CONFIG=alldefconfig  CROSS_COMPILE=or1k-linux-
    - ARCH=x86    CONFIG=defconfig
before_install:
  - wget http://shorne.noip.me/crosstool/files/bin/x86_64/5.4.0/gcc-5.4.0-nolibc.tar.xz -O /tmp/gcc.tar.xz
  - tar -xvf /tmp/gcc.tar.xz
  - export PATH=$PATH:$PWD/gcc-5.4.0-nolibc/bin
script:  make $CONFIG && make -j2