ansible: install clang38 on freebsd10 hosts

* Install the clang38 package on freebsd10 hosts
* Updated the freebsd init template to allow configuration of the CC
  and CXX environment variables
* Added CC/CXX configuration for freebsd10 hosts

Author: kfarnung

ansible/ansible.cfg

@@ -28,3 +28,7 @@ ansible_python_interpreter = /opt/local/bin/python
 
 [hosts:freebsd]
 ansible_python_interpreter = /usr/local/bin/python
+
+[hosts:freebsd10]
+custom_cc_command = clang38
+custom_cxx_command = clang++38

ansible/roles/baselayout/vars/main.yml

@@ -72,6 +72,10 @@ packages: {
     'gmake'
   ],
 
+  freebsd10: [
+    'clang38'
+  ],
+
   smartos14: [
     'gcc48',
     'gcc48-libs',

ansible/roles/jenkins-worker/templates/freebsd.initd.j2

@@ -28,8 +28,8 @@ jenkins_env=" \
   NODE_TEST_DIR=/home/{{ server_user }}/tmp \
   PATH=/usr/local/libexec/ccache:/usr/local/bin:${PATH} \
   JOBS={{ server_jobs|default(ansible_processor_vcpus|default('2')) }} \
-  CC=cc \
-  CXX=c++"
+  CC={{ custom_cc_command|default('cc') }} \
+  CXX={{ custom_cxx_command|default('c++') }}"
 
 jenkins_jar="/home/{{ server_user }}/slave.jar"
 jenkins_log_file="/home/{{ server_user }}/${name}_console.log"