# File lib/pkg-config.rb, line 383
  def check_version?(pkg, major=0, minor=0, micro=0)
    return false unless exist?(pkg)
    ver = modversion(pkg).split(".").collect {|item| item.to_i}
    (0..2).each {|i| ver[i] = 0 unless ver[i]}

    (ver[0] > major ||
     (ver[0] == major && ver[1] > minor) ||
     (ver[0] == major && ver[1] == minor &&
      ver[2] >= micro))
  end