comment "libgtk3 needs a toolchain w/ wchar, threads, C++, gcc >= 4.8, host gcc >= 4.8"
	depends on BR2_USE_MMU
	depends on BR2_TOOLCHAIN_HAS_SYNC_4
	depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP || \
		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 || \
		!BR2_HOST_GCC_AT_LEAST_4_8 || \
		!BR2_TOOLCHAIN_HAS_THREADS

comment "libgtk3 needs an OpenGL or an OpenGL-EGL/wayland backend"
	depends on BR2_USE_MMU
	depends on BR2_TOOLCHAIN_HAS_SYNC_4
	depends on !BR2_PACKAGE_HAS_LIBEGL_WAYLAND && \
		!BR2_PACKAGE_HAS_LIBGL

config BR2_PACKAGE_LIBGTK3
	bool "libgtk3"
	depends on BR2_USE_WCHAR # glib2
	depends on BR2_TOOLCHAIN_HAS_THREADS # glib2
	depends on BR2_USE_MMU # glib2
	depends on BR2_INSTALL_LIBSTDCPP # pango
	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pango -> harfbuzz
	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_8 # pango -> harfbuzz
	# host-libgtk3 -> host-librsvg -> host-pango -> host-harfbuzz
	depends on BR2_HOST_GCC_AT_LEAST_4_8
	depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND || \
		BR2_PACKAGE_HAS_LIBGL
	select BR2_PACKAGE_ATK
	select BR2_PACKAGE_CAIRO
	select BR2_PACKAGE_CAIRO_PS
	select BR2_PACKAGE_CAIRO_PDF
	select BR2_PACKAGE_CAIRO_SVG
	select BR2_PACKAGE_LIBEPOXY
	select BR2_PACKAGE_LIBGLIB2
	select BR2_PACKAGE_PANGO
	select BR2_PACKAGE_GDK_PIXBUF
	# At least one backend is required
	select BR2_PACKAGE_LIBGTK3_BROADWAY if \
		!(BR2_PACKAGE_LIBGTK3_X11 || BR2_PACKAGE_LIBGTK3_WAYLAND)
	help
	  The GTK+ version 3 graphical user interface library

	  http://www.gtk.org/

if BR2_PACKAGE_LIBGTK3

config BR2_PACKAGE_LIBGTK3_BROADWAY
	bool "Broadway GDK backend"
	default y
	  help
	  This enables the Broadway backend for GDK, which provides
	  support for displaying GTK+ applications in a web browser,
	  using HTML5 and web sockets.

	  For example, to run gtk3-demo on a target which IP address is
	  192.168.0.1 and use it from a web browser, execute the
	  following commands:

	  $ broadwayd -a 192.168.0.1 -p 8080 :2 &
	  $ export GDK_BACKEND=broadway
	  $ export BROADWAY_DISPLAY=:2
	  $ gtk3-demo

	  Then open a web browser at address http://192.168.0.1:8080.
	  Javascript and web sockets should be enabled.

comment "Wayland GDK backend needs an OpenGL EGL backend provided by mesa3d w/ headers >= 3.17"
	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL || \
		!BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17

config BR2_PACKAGE_LIBGTK3_WAYLAND
	bool "Wayland GDK backend"
	default y
	depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND
	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
	select BR2_PACKAGE_WAYLAND
	select BR2_PACKAGE_WAYLAND_PROTOCOLS
	select BR2_PACKAGE_LIBXKBCOMMON
	help
	  This enables the Wayland backend for GDK.

comment "X11 GDK backend needs an OpenGL provider"
	depends on !BR2_PACKAGE_HAS_LIBGL

config BR2_PACKAGE_LIBGTK3_X11
	bool "X11 GDK backend"
	default y
	depends on BR2_PACKAGE_XORG7
	depends on BR2_PACKAGE_HAS_LIBGL
	select BR2_PACKAGE_FONTCONFIG
	select BR2_PACKAGE_XLIB_LIBX11
	select BR2_PACKAGE_XLIB_LIBXEXT
	select BR2_PACKAGE_XLIB_LIBXRENDER
	select BR2_PACKAGE_XLIB_LIBXI
	help
	  This enables the X11 backend for GDK.

config BR2_PACKAGE_LIBGTK3_DEMO
	bool "Install libgtk3 demo program"
	select BR2_PACKAGE_SHARED_MIME_INFO
	select BR2_PACKAGE_HICOLOR_ICON_THEME
	help
	  The GTK+ source base contains a demo program. This
	  option allows to install this program to the target.

config BR2_PACKAGE_LIBGTK3_TESTS
	bool "Install libgtk3 tests"
	help
	  The GTK+ source base contains tests. This option
	  allows to install them to the target.

endif