Upgrade to cling 0.9

Author: SylvainCorlay

.appveyor.yml

@@ -27,7 +27,7 @@ install:
   - conda update -q conda
   - conda info -a
   # Install dependencies
-  - conda install cmake dirent xeus-zmq=1.0.0 cling=0.8 clangdev=5 llvmdev=5 nlohmann_json cppzmq xtl=0.7 pugixml cxxopts=2.1.2 doctest>=2.4.6 -c conda-forge
+  - conda install cmake dirent xeus-zmq=1.0.0 cling=0.9 nlohmann_json cppzmq xtl=0.7 pugixml cxxopts=2.1.2 doctest>=2.4.6 zlib -c conda-forge
   # Build and install xeus-cling
   - mkdir build
   - cd build

environment-host.yml

@@ -6,9 +6,7 @@ dependencies:
   - cmake
   # Host dependencies
   - xeus-zmq=1.0.0
-  - cling=0.8
-  - clangdev=5
-  - llvmdev=5
+  - cling=0.9
   - nlohmann_json
   - cppzmq
   - xtl=0.7