comment "gtkmm3 needs libgtk3 and a toolchain w/ C++, wchar, threads, gcc >= 7"
	depends on BR2_USE_MMU
	depends on BR2_TOOLCHAIN_HAS_SYNC_4
	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_7 || !BR2_USE_WCHAR \
		|| !BR2_INSTALL_LIBSTDCPP || !BR2_PACKAGE_LIBGTK3 \
		|| !BR2_TOOLCHAIN_HAS_THREADS

config BR2_PACKAGE_GTKMM3
	bool "gtkmm3"
	# Broken on existing external/internal nios2 toolchains,
	# revisit when they are upgraded with at least Binutils >= 2.26
	# and GCC >= 5.3.
	# https://sourceware.org/bugzilla/show_bug.cgi?id=19405
	depends on !BR2_nios2
	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # pangomm, libgtk3 -> pango -> harfbuzz
	depends on BR2_INSTALL_LIBSTDCPP # glibmm, libpangomm -> glibmm/pango
	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_7 # libsigc
	depends on BR2_TOOLCHAIN_HAS_THREADS # *mm/libgtk3 -> libglib2
	depends on BR2_USE_MMU # *mm/libgtk3 -> libglib2
	depends on BR2_USE_WCHAR # *mm/libgtk3 -> libglib2
	depends on BR2_PACKAGE_LIBGTK3
	select BR2_PACKAGE_ATKMM
	select BR2_PACKAGE_CAIROMM
	select BR2_PACKAGE_GLIBMM
	select BR2_PACKAGE_LIBSIGC
	select BR2_PACKAGE_PANGOMM
	help
	  The gtkmm3 package is a set of C++ bindings for GTK 3.

	  http://www.gtkmm.org/