Travis integration.

/cc @fnoble @benjamin0 @kovach

Author: mookerji

.travis.yml

@@ -0,0 +1,17 @@
+sudo: required
+
+# CMake 2.8.9 is needed to build libswiftnav, but Travis only supports
+# an earlier version. This sets up that dependency. See also:
+#   https://gist.github.com/winterz/10cc2741d466cbd8ff21
+#   https://github.com/travis-ci/travis-ci/issues/2030
+
+before_install:
+  - sudo add-apt-repository --yes ppa:kalakris/cmake
+  - travis_retry sudo apt-get update -qq
+  - sudo apt-get install cmake check
+
+script:
+  - mkdir build
+  - cd build/
+  - cmake ../
+  - make

README.md

@@ -1,6 +1,8 @@
 libswiftnav
 ===========
 
+[![Build status][1]][2]
+
 libswiftnav is a platform independent library of GNSS related functions.
 This library implements GNSS related functions and algorithms for use by
 software-defined GNSS receivers and other software.
@@ -13,3 +15,6 @@ Full documentation available online at http://docs.swift-nav.com/libswiftnav
 For installation, see docs/install.dox
 
 For development help, see DEVELOPMENT.rst.
+
+[1]: https://travis-ci.org/swift-nav/libswiftnav.png
+[2]: https://travis-ci.org/swift-nav/libswiftnav