buildroot/package/tar/Config.in

config BR2_PACKAGE_TAR
	bool "tar"
	default n
	depends on BR2_USE_WCHAR
	select BR2_UCLIBC_PROGRAM_INVOCATION
	help
	  A program that saves many files together into a single tape or disk 
	  archive, and can restore individual files from the archive.

	  http://www.gnu.org/software/tar/