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# --- GTK ---
ocv_clear_vars(HAVE_GTK HAVE_GTK2 HAVE_GTK3 HAVE_GTHREAD HAVE_GTKGLEXT)
if(WITH_GTK)
if(NOT WITH_GTK_2_X)
ocv_check_modules(GTK3 gtk+-3.0)
if(HAVE_GTK3)
ocv_add_external_target(gtk3 "${GTK3_INCLUDE_DIRS}" "${GTK3_LIBRARIES}" "HAVE_GTK3;HAVE_GTK")
set(HAVE_GTK TRUE)
endif()
endif()
if((PROJECT_NAME STREQUAL "OpenCV" AND HIGHGUI_ENABLE_PLUGINS) OR NOT HAVE_GTK3)
ocv_check_modules(GTK2 gtk+-2.0)
if(HAVE_GTK2)
set(MIN_VER_GTK "2.18.0")
if(GTK2_VERSION VERSION_LESS MIN_VER_GTK)
message(FATAL_ERROR "GTK support requires a minimum version of ${MIN_VER_GTK} (${GTK2_VERSION} found)")
else()
ocv_add_external_target(gtk2 "${GTK2_INCLUDE_DIRS}" "${GTK2_LIBRARIES}" "HAVE_GTK2;HAVE_GTK")
set(HAVE_GTK TRUE)
endif()
endif()
endif()
ocv_check_modules(GTHREAD gthread-2.0>=2.32)
if(HAVE_GTK AND NOT HAVE_GTHREAD)
message(FATAL_ERROR "gthread not found. This library is required when building with GTK support")
else()
ocv_add_external_target(gthread "${GTHREAD_INCLUDE_DIRS}" "${GTHREAD_LIBRARIES}" "HAVE_GTHREAD")
endif()
if((WITH_OPENGL OR HAVE_OPENGL) AND HAVE_GTK2)
ocv_check_modules(GTKGLEXT gtkglext-1.0)
if(HAVE_GTKGLEXT)
ocv_add_external_target(gtkglext "${GTKGLEXT_INCLUDE_DIRS}" "${GTKGLEXT_LIBRARIES}" "HAVE_GTKGLEXT")
endif()
endif()
elseif(HAVE_GTK)
ocv_add_external_target(gtk "${GTK_INCLUDE_DIRS}" "${GTK_LIBRARIES}" "${GTK_DEFINES};HAVE_GTK")
endif()
if(WITH_OPENGL AND HAVE_GTKGLEXT)
find_package(OpenGL QUIET)
if(OPENGL_FOUND)
set(HAVE_OPENGL TRUE)
ocv_add_external_target(gtk_opengl "${OPENGL_INCLUDE_DIRS}" "${OPENGL_LIBRARIES}" "HAVE_OPENGL")
endif()
endif()
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