Fix clang compilation

diff --git a/.travis.yml b/.travis.yml
index 017219d955b4b20753826fa23799e6a5a7502844..487aa4e6aa9a3eb0d8ff614b32b99c4a3faf77e9 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -38,5 +38,5 @@ matrix:
         - brew install swig numpy octave guile || echo "nope"
       script:
         - mkdir build && pushd build
-        - cmake -DCMAKE_INSTALL_PREFIX=~/.local  -DWITH_CXX=ON ..
+        - cmake -DCMAKE_INSTALL_PREFIX=~/.local -DCMAKE_CXX_FLAGS="-std=c++11 -stdlib=libc++" -DWITH_CXX=ON ..
         - make install && make tests && ctest --output-on-failure