# frozen_string_literal: true
require("mkmf")

if RUBY_ENGINE == 'ruby'
  $CFLAGS << ' -O3 '
  $CFLAGS << ' -std=c99'

  # ruby.h has some -Wpedantic fails in some cases
  # (e.g. https://github.com/Shopify/bootsnap/issues/15)
  unless ['0', '', nil].include?(ENV['BOOTSNAP_PEDANTIC'])
    $CFLAGS << ' -Wall'
    $CFLAGS << ' -Werror'
    $CFLAGS << ' -Wextra'
    $CFLAGS << ' -Wpedantic'

    $CFLAGS << ' -Wno-unused-parameter' # VALUE self has to be there but we don't care what it is.
    $CFLAGS << ' -Wno-keyword-macro' # hiding return
    $CFLAGS << ' -Wno-gcc-compat' # ruby.h 2.6.0 on macos 10.14, dunno
  end

  create_makefile("bootsnap/bootsnap")
else
  File.write("Makefile", dummy_makefile($srcdir).join(""))
end