Merge pull request #2295 from sturkmen72:patch-4

Author: alalek

.travis.yml

@@ -4,10 +4,15 @@ compiler:
   - clang
 before_script:
   - cd ../
-  - git clone https://github.com/opencv/opencv.git
+  - git clone --depth=1 https://github.com/opencv/opencv.git
   - mkdir build-opencv
   - cd build-opencv
-  - cmake -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules ../opencv
+  - cmake 
+    -DBUILD_EXAMPLES=ON 
+    -DBUILD_PERF_TESTS=OFF 
+    -DBUILD_TESTS=OFF 
+    -DOPENCV_EXTRA_MODULES_PATH=../opencv_contrib/modules 
+    ../opencv
 script:
   - make -j5
 notifications: