config BR2_PACKAGE_LIBSIGC
	bool "libsigc++"
	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_7 # C++11
	depends on BR2_INSTALL_LIBSTDCPP
	help
	  libsigc++ implements a typesafe callback system for standard C++.
	  It allows you to define signals and to connect those signals to
	  any callback function, either global or a member function,
	  regardless of whether it is static or virtual.

	  http://libsigc.sourceforge.net/

comment "libsigc++ needs a toolchain w/ C++, gcc >= 4.7"
	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_GCC_AT_LEAST_4_7