module RSpec::Expectations::Syntax

def warn_about_should_unless_configured(method_name)
  return unless @warn_about_should
  RSpec.deprecate(
    "Using `#{method_name}` from rspec-expectations' old `:should` syntax without explicitly enabling the syntax",
    :replacement => "the new `:expect` syntax or explicitly enable `:should` with `config.expect_with(:rspec) { |c| c.syntax = :should }`"
  )
  @warn_about_should = false
end