Add clang to Travis-CI testing

diff --git a/.travis.yml b/.travis.yml
index a3ead65270f62e17d5bae2f9427847ef9a249dd5..b2f8c5606cd60c002fd0c3fe714faa400c461e89 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ dist: trusty
 language: c
 compiler:
   - gcc
+  - clang
 
 before_install:
   - sudo apt-get update -qq