diff --git a/CMakeLists.txt b/CMakeLists.txt
index 32acdf18c..525d209e8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -623,6 +623,10 @@ if(WIN32)
     set(PYTHON_PACKAGES_PATH "${PYTHON_PATH}/Lib/site-packages")
 endif()
 
+IF (${PYTHON_VERSION_MAJOR_MINOR} VERSION_GREATER 2.5)
+    SET(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE} -B)
+ENDIF()
+
 # Attempt to discover the NumPy include directory. If this succeeds, then build python API with NumPy
 execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import numpy.distutils; print numpy.distutils.misc_util.get_numpy_include_dirs()[0]"
             RESULT_VARIABLE PYTHON_NUMPY_PROCESS
diff --git a/modules/java/CMakeLists.txt b/modules/java/CMakeLists.txt
index 8fab4c4f4..47f5d32bc 100644
--- a/modules/java/CMakeLists.txt
+++ b/modules/java/CMakeLists.txt
@@ -30,7 +30,7 @@ foreach(module ${OPENCV_JAVA_MODULES})
     add_custom_command(
         OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${module}.java"
         OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${module}.cpp"
-        COMMAND "${PYTHON_EXECUTABLE}" -B "${GEN_JAVA}" "${HDR_PARSER}" ${module} ${module_cheaders} ${module_cppheaders}
+        COMMAND ${PYTHON_EXECUTABLE} "${GEN_JAVA}" "${HDR_PARSER}" ${module} ${module_cheaders} ${module_cppheaders}
         WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
         DEPENDS "${GEN_JAVA}"
         DEPENDS "${HDR_PARSER}"
@@ -102,6 +102,16 @@ IF(ANDROID)
             install(FILES "${CMAKE_BINARY_DIR}/${lib_file_name}" DESTINATION . COMPONENT main)
         endif()
     endforeach()
+
+    foreach(jni_file ${handwrittren_cpp_sources} ${generated_cpp_sources})
+        get_filename_component(jni_file_name "${jni_file}" NAME)
+        add_custom_command(
+            TARGET ${api_target}
+            COMMAND ${CMAKE_COMMAND} -E copy "${jni_file}" "${CMAKE_BINARY_DIR}/jni/${jni_file_name}"
+            DEPENDS "${jni_file}"
+            COMMENT "Generating jni/${jni_file_name}"
+            )
+    endforeach()
 ENDIF()
 
 FILE(GLOB java_project_files "${CMAKE_CURRENT_SOURCE_DIR}/src/java/*.java")
diff --git a/modules/python/CMakeLists.txt b/modules/python/CMakeLists.txt
index ce21d2284..30b2a7f1c 100644
--- a/modules/python/CMakeLists.txt
+++ b/modules/python/CMakeLists.txt
@@ -53,7 +53,7 @@ target_link_libraries(${cv_target} ${PYTHON_LIBRARIES} opencv_core opencv_imgpro
 set_target_properties(${cv_target} PROPERTIES PREFIX "")
 set_target_properties(${cv_target} PROPERTIES OUTPUT_NAME "cv")
 
-execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import distutils.sysconfig; print distutils.sysconfig.get_config_var('SO')"
+execute_process(COMMAND ${PYTHON_EXECUTABLE} -c "import os; os.environ['DISTUTILS_USE_SDK']='1'; import distutils.sysconfig; print distutils.sysconfig.get_config_var('SO')"
                 RESULT_VARIABLE PYTHON_CVPY_PROCESS
                 OUTPUT_VARIABLE CVPY_SUFFIX
                 OUTPUT_STRIP_TRAILING_WHITESPACE)