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if(PROJECT_NAME STREQUAL "OpenCV")
set(ENABLE_PLUGINS_DEFAULT ON)
if(EMSCRIPTEN OR IOS OR WINRT)
set(ENABLE_PLUGINS_DEFAULT OFF)
endif()
set(HIGHGUI_PLUGIN_LIST "" CACHE STRING "List of GUI backends to be compiled as plugins (gtk, gtk2/gtk3, qt, win32 or special value 'all')")
set(HIGHGUI_ENABLE_PLUGINS "${ENABLE_PLUGINS_DEFAULT}" CACHE BOOL "Allow building and using of GUI plugins")
mark_as_advanced(HIGHGUI_PLUGIN_LIST HIGHGUI_ENABLE_PLUGINS)
string(REPLACE "," ";" HIGHGUI_PLUGIN_LIST "${HIGHGUI_PLUGIN_LIST}") # support comma-separated list (,) too
string(TOLOWER "${HIGHGUI_PLUGIN_LIST}" HIGHGUI_PLUGIN_LIST)
if(NOT HIGHGUI_ENABLE_PLUGINS)
if(HIGHGUI_PLUGIN_LIST)
message(WARNING "HighGUI: plugins are disabled through HIGHGUI_ENABLE_PLUGINS, so HIGHGUI_PLUGIN_LIST='${HIGHGUI_PLUGIN_LIST}' is ignored")
set(HIGHGUI_PLUGIN_LIST "")
endif()
else()
# Make virtual plugins target
if(NOT TARGET opencv_highgui_plugins)
add_custom_target(opencv_highgui_plugins ALL)
endif()
endif()
endif()
#
# Detect available dependencies
#
if(NOT PROJECT_NAME STREQUAL "OpenCV")
include(FindPkgConfig)
endif()
macro(add_backend backend_id cond_var)
if(${cond_var})
include("${CMAKE_CURRENT_LIST_DIR}/detect_${backend_id}.cmake")
endif()
endmacro()
add_backend("gtk" WITH_GTK)
add_backend("win32ui" WITH_WIN32UI)
add_backend("wayland" WITH_WAYLAND)
# TODO cocoa
# TODO qt
# TODO opengl
# FIXIT: move content of cmake/OpenCVFindLibsGUI.cmake here (need to resolve CMake scope issues)
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