Travis

.travis.yml

@@ -6,23 +6,39 @@ sudo: false
 addons:
   apt:
     sources:
+      - llvm-toolchain-precise-3.6
+      - llvm-toolchain-precise-3.7
+      - llvm-toolchain-precise-3.8
       - sourceline: "deb http://apt.llvm.org/trusty/ llvm-toolchain-trusty-3.9 main"
         key_url: "http://apt.llvm.org/llvm-snapshot.gpg.key"
       - ubuntu-toolchain-r-test
     packages:
       - cmake-data
       - cmake
+      - clang-3.6
+      - clang-3.7
+      - clang-3.8
       - clang-3.9
       - libc++-dev
       - gcc-5
       - g++-5
 
-compiler:
-  - clang
-  - gcc
+matrix:
+  include:
+    - compiler: gcc
+      env: COMPILER=g++-5
+    - compiler: clang
+      env: COMPILER=clang++-3.6
+    - compiler: clang
+      env: COMPILER=clang++-3.7
+    - compiler: clang
+      env: COMPILER=clang++-3.8
+    - compiler: clang
+      env: COMPILER=clang++-3.9
+
 
 install:
-    - if [ "$CXX" = "clang++" ]; then export CXX="clang++-3.9 -stdlib=libc++" CC="clang-3.9"; fi
-    - if [ "$CXX" = "g++" ]; then export CXX="g++-5" CC="gcc-5"; fi
+    - if [ "$CXX" = "clang++" ]; then export CXX="$COMPILER -stdlib=libc++"; fi
+    - if [ "$CXX" = "g++" ]; then export CXX="$COMPILER"; fi
 
 script: mkdir build && cd build && cmake .. && make && ./tests