Run an exception disabled build inside travis

.travis.yml

@@ -22,6 +22,7 @@ matrix:
             - ninja-build
       env:
         - COMPILER=g++-6
+        - NO_EXCEPTIONS=OFF
 
     - os: linux
       compiler: clang
@@ -38,6 +39,24 @@ matrix:
             - ninja-build
       env:
         - COMPILER=clang++-5.0
+        - NO_EXCEPTIONS=OFF
+
+    - os: linux
+      compiler: clang
+      addons:
+        apt:
+          sources:
+            - ubuntu-toolchain-r-test
+            - llvm-toolchain-trusty-5.0
+          packages:
+            - g++-6
+            - clang-5.0
+            - cmake
+            - cmake-data
+            - ninja-build
+      env:
+        - COMPILER=clang++-5.0
+        - NO_EXCEPTIONS=ON
 
 install:
   - export CXX=$COMPILER
@@ -55,7 +74,7 @@ install:
       cd build
 
       # Configure the project and build it
-      cmake -GNinja -DCMAKE_CXX_FLAGS="$CMAKE_CXX_FLAGS -Werror" -DCMAKE_BUILD_TYPE=Debug ..
+      cmake -GNinja -DCMAKE_CXX_FLAGS="$CMAKE_CXX_FLAGS -Werror" -DTESTS_NO_EXCEPTIONS=$NO_EXCEPTIONS -DCMAKE_BUILD_TYPE=Debug ..
     }
 
 script: