add Travis CI
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..1ed1152
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,15 @@
+language: c
+compiler:
+ - gcc
+
+script:
+ - make
+ - make test
+ - make mtest
+ - ./mtest/mtest 666666 | ./test > test.log
+ - head -n 5 test.log
+ - tail -n 2 test.log
+
+branches:
+ only:
+ - develop
diff --git a/README.md b/README.md
index 7c037ae..502f553 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,5 @@
+[![Build Status](https://travis-ci.org/fperrad/libtommath.png?branch=develop)](https://travis-ci.org/fperrad/libtommath)
+
This is the git repository for [LibTomMath](http://www.libtom.org/), a free open source portable number theoretic multiple-precision integer (MPI) library written entirely in C.
The `develop` branch contains the in-development version. Stable releases are tagged.