Show clang version in travis build after installing conda.

.travis.yml

@@ -110,9 +110,10 @@ before_install:
     if [[ "$TRAVIS_OS_NAME" == "osx" ]] || [[ "$STACKLESS" == "true" ]]; then # Install Miniconda
       if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then CONDA_PLATFORM=MacOSX; else CONDA_PLATFORM=Linux; fi;
       curl -s -o miniconda.sh https://repo.continuum.io/miniconda/Miniconda$PY-latest-${CONDA_PLATFORM}-x86_64.sh;
-      bash miniconda.sh -b -p $HOME/miniconda && rm miniconda.sh;
+      bash miniconda.sh -b -p $HOME/miniconda clang && rm miniconda.sh;
       export PATH="$HOME/miniconda/bin:$PATH"; hash -r;
       #conda install --quiet --yes nomkl --file=test-requirements.txt --file=test-requirements-cpython.txt;
+      if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then which clang && clang --version || true; fi;
     fi
 
   - if [[ "$STACKLESS" == "true" ]]; then