add osx xcode6.4 to travis (used by conda-forge)

fastscape-lem · Aug 23, 2018 · fac7088 · fac7088
1 parent 57d183c
commit fac7088
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -73,6 +73,9 @@ matrix:
             - clang-6.0
             - libstdc++-6-dev
       env: COMPILER=clang CLANG=6.0
+    - os: osx
+      osx_image: xcode6.4
+      compiler: clang
     - os: osx
       osx_image: xcode8
       compiler: clang