Merge pull request #7854 from alalek:backports_2016

(2.4) Backports from master branch (#7854)

apps/CMakeLists.txt

@@ -4,3 +4,4 @@ add_subdirectory(haartraining)
 add_subdirectory(traincascade)
 add_subdirectory(annotation)
 add_subdirectory(visualisation)
+add_subdirectory(version)

apps/haartraining/CMakeLists.txt

@@ -10,6 +10,8 @@ project(haartraining)
 ocv_include_directories("${CMAKE_CURRENT_SOURCE_DIR}" "${OpenCV_SOURCE_DIR}/include/opencv")
 ocv_include_modules(${OPENCV_HAARTRAINING_DEPS})
 
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Wunused-private-field)
+
 if(WIN32)
   link_directories(${CMAKE_CURRENT_BINARY_DIR})
 endif()

apps/traincascade/CMakeLists.txt

@@ -10,6 +10,8 @@ project(traincascade)
 ocv_include_directories("${CMAKE_CURRENT_SOURCE_DIR}" "${OpenCV_SOURCE_DIR}/include/opencv")
 ocv_include_modules(${OPENCV_TRAINCASCADE_DEPS})
 
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Woverloaded-virtual)
+
 set(traincascade_files traincascade.cpp
   cascadeclassifier.cpp cascadeclassifier.h
   boost.cpp boost.h features.cpp traincascade_features.h

apps/version/CMakeLists.txt

@@ -0,0 +1,32 @@
+SET(OPENCV_APPLICATION_DEPS opencv_core)
+ocv_check_dependencies(${OPENCV_APPLICATION_DEPS})
+
+if(NOT OCV_DEPENDENCIES_FOUND)
+  return()
+endif()
+
+project(opencv_version)
+set(the_target opencv_version)
+
+ocv_include_directories("${CMAKE_CURRENT_SOURCE_DIR}" "${OpenCV_SOURCE_DIR}/include/opencv")
+ocv_include_modules(${OPENCV_APPLICATION_DEPS})
+
+file(GLOB SRCS *.cpp)
+
+add_executable(${the_target} ${SRCS})
+target_link_libraries(${the_target} ${OPENCV_APPLICATION_DEPS})
+
+set_target_properties(${the_target} PROPERTIES
+                      DEBUG_POSTFIX "${OPENCV_DEBUG_POSTFIX}"
+                      RUNTIME_OUTPUT_DIRECTORY ${EXECUTABLE_OUTPUT_PATH}
+                      OUTPUT_NAME "opencv_version")
+
+set_target_properties(${the_target} PROPERTIES FOLDER "applications")
+
+if(INSTALL_CREATE_DISTRIB)
+  if(BUILD_SHARED_LIBS)
+    install(TARGETS ${the_target} RUNTIME DESTINATION ${OPENCV_BIN_INSTALL_PATH} CONFIGURATIONS Release COMPONENT libs)
+  endif()
+else()
+  install(TARGETS ${the_target} RUNTIME DESTINATION ${OPENCV_BIN_INSTALL_PATH} COMPONENT libs)
+endif()

apps/version/opencv_version.cpp

@@ -0,0 +1,28 @@
+// This file is part of OpenCV project.
+// It is subject to the license terms in the LICENSE file found in the top-level directory
+// of this distribution and at http://opencv.org/license.html.
+
+#include <iostream>
+
+#include <opencv2/core.hpp>
+
+int main(int argc, const char** argv)
+{
+    cv::CommandLineParser parser(argc, argv,
+        "{ h|help    | false | show this help message }"
+        "{ v|verbose | false | show build configuration log }"
+    );
+    if (parser.get<bool>("help"))
+    {
+        parser.printParams();
+    }
+    else if (parser.get<bool>("verbose"))
+    {
+        std::cout << cv::getBuildInformation().c_str() << std::endl;
+    }
+    else
+    {
+        std::cout << CV_VERSION << std::endl;
+    }
+    return 0;
+}