[master] 6c4e164 First stab at osx on travis-ci

[Federico G. Schwindt]

commit 6c4e16495017e284feb4d25ec94531bd72553528
Author: Federico G. Schwindt <fgsch at lodoss.net>
Date:   Sat Mar 11 10:52:07 2017 +0000

    First stab at osx on travis-ci

diff --git a/.travis.yml b/.travis.yml
index 164ba4b..a8aae1f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,11 +3,16 @@ language: c
 compiler:
   - clang
   - gcc
+os:
+  - linux
+  - osx
 addons:
   apt:
     packages:
     - python-docutils
 before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update          ; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install docutils; fi
   - ./autogen.sh
   - ./configure
 sudo: false