config BR2_PACKAGE_BC
  	bool "bc"
  	help
  	  'bc' is an arbitrary precision numeric processing language
  	  Its syntax is similar to C, but differs in many substantial
  	  areas. It supports interactive execution of statements. 'Bc'
  	  is a utility included in the POSIX P1003.2/D11 draft standard.
  	  This version does not use the historical method of having bc
  	  be a compiler for the dc calculator (the POSIX document doesn't
  	  specify how bc must be implemented). This version has a single
  	  executable that both compiles the language and runs the resulting
  	  'byte code.' The byte code is not the dc language.
  
  	  http://www.gnu.org/software/bc