config BR2_PACKAGE_LIBPFM4
  	bool "libpfm4"
  	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
  	help
  	  A helper library to help encode Performance Events to use with
  	  Operating system kernels performance monitoring interfaces.
  
  	  http://perfmon2.sourceforge.net/
  
  comment "libpfm4 needs a toolchain w/ NPTL"
  	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL