def checks_pass?
      rv = true
      unless File.exist?(@platform)
        puts "No platform or invalid platform configuration given: (#{@platform}) !"
        puts "Use either property 'platform' via RakeOE::Config object in the Rakefile or environment variable TOOLCHAIN_ENV"
        rv = false
      end
      rv
    end
def checks_pass?
      rv = true
      unless File.exist?(@platform)
        puts "No platform or invalid platform configuration given: (#{@platform}) !"
        puts "Use either property 'platform' via RakeOE::Config object in the Rakefile or environment variable TOOLCHAIN_ENV"
        rv = false
      end
      rv
    end
Checks configuration, e.g. if given files do exist or if vital configuration settings are missing

 @return [bool]    true if checks pass, false otherwise