fixes #5019: python and java bindings become CMake modules (loadable plugins)

modules/java/CMakeLists.txt

@@ -346,9 +346,16 @@ endif(ANDROID)
 # workarounding lack of `__attribute__ ((visibility("default")))` in jni_md.h/JNIEXPORT
 string(REPLACE "-fvisibility=hidden" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
 
-ocv_add_library(${the_module} SHARED ${handwritten_h_sources} ${handwritten_cpp_sources} ${generated_cpp_sources}
+if(ANDROID)
+  # Android native code need to link with libopencv_java.so
+  ocv_add_library(${the_module} SHARED ${handwritten_h_sources} ${handwritten_cpp_sources} ${generated_cpp_sources}
                                  ${copied_files}
                                 "${JAR_FILE}" "${JAR_FILE}.dephelper")
+else()
+  ocv_add_library(${the_module} MODULE ${handwritten_h_sources} ${handwritten_cpp_sources} ${generated_cpp_sources}
+                                 ${copied_files}
+                                "${JAR_FILE}" "${JAR_FILE}.dephelper")
+endif()
 
 if(BUILD_FAT_JAVA_LIB)
   set(__deps ${OPENCV_MODULE_${the_module}_DEPS} ${OPENCV_MODULES_BUILD})

modules/python/common.cmake

@@ -46,7 +46,7 @@ add_custom_command(
    DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/headers.txt
    DEPENDS ${opencv_hdrs})
 
-ocv_add_library(${the_module} SHARED ${PYTHON_SOURCE_DIR}/src2/cv2.cpp ${cv2_generated_hdrs})
+ocv_add_library(${the_module} MODULE ${PYTHON_SOURCE_DIR}/src2/cv2.cpp ${cv2_generated_hdrs})
 
 if(PYTHON_DEBUG_LIBRARIES AND NOT PYTHON_LIBRARIES MATCHES "optimized.*debug")
   ocv_target_link_libraries(${the_module} debug ${PYTHON_DEBUG_LIBRARIES} optimized ${PYTHON_LIBRARIES})