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-rw-r--r--modules/java/jar/CMakeLists.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/modules/java/jar/CMakeLists.txt b/modules/java/jar/CMakeLists.txt
index 4771900848..d34a8e26bf 100644
--- a/modules/java/jar/CMakeLists.txt
+++ b/modules/java/jar/CMakeLists.txt
@@ -21,7 +21,9 @@ set(depends ${the_module}_jar_source_copy "${OPENCV_DEPHELPER}/${the_module}_jar
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/build.xml.in" "${OPENCV_JAVA_DIR}/build.xml" @ONLY)
list(APPEND depends "${OPENCV_JAVA_DIR}/build.xml")
+ocv_cmake_byproducts(__byproducts BYPRODUCTS "${OPENCV_JAR_FILE}")
add_custom_command(OUTPUT "${OPENCV_DEPHELPER}/${the_module}_jar"
+ ${__byproducts} # required for add_custom_target() by ninja
COMMAND ${ANT_EXECUTABLE} -noinput -k jar
COMMAND ${CMAKE_COMMAND} -E touch "${OPENCV_DEPHELPER}/${the_module}_jar"
WORKING_DIRECTORY "${OPENCV_JAVA_DIR}"