[monitoring-plugins] travis-ci: Adding clang to the matrix

[Jan Wagner]

 Module: monitoring-plugins
 Branch: master
 Commit: f49ad0d576daf9fd8ec563e49a78f4234c6dd497
 Author: Jan Wagner <waja at cyconet.org>
   Date: Mon Nov 21 15:43:52 2016 +0100
    URL: https://www.monitoring-plugins.org/repositories/monitoring-plugins/commit/?id=f49ad0d

travis-ci: Adding clang to the matrix

See https://docs.travis-ci.com/user/multi-os/#Example-Multi-OS-Build-Matrix
for Multi OS matrix

---

 .travis.yml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 3321165..62c12d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -23,6 +23,11 @@ matrix:
           build_command_prepend: tools/setup && ./configure
           build_command: make
           branch_pattern: coverity.*
+    - compiler: "clang"
+      os: linux
+      env:
+        - PLATFORM=linux BITS=64 HOST=x86_64
+        - CXX=clang++
 
 before_install:
   # Trusty related fixed