config BR2_PACKAGE_PROJ
	bool "proj"
	depends on BR2_TOOLCHAIN_HAS_THREADS
	help
	  proj.4 is a standard UNIX filter function which converts
	  geographic longitude and latitude coordinates into cartesian
	  coordinates (and vice versa), and it is a C API for software
	  developers to include coordinate transformation in their own
	  software.

	  http://proj4.org/

comment "proj needs a toolchain w/ threads"
	depends on !BR2_TOOLCHAIN_HAS_THREADS