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# frozen_string_literal: false
require 'mkmf'
if RUBY_VERSION < "2.6"
File.write("Makefile", dummy_makefile($srcdir).join(""))
else
target = "io/wait"
have_func("rb_io_wait")
have_func("rb_io_descriptor")
unless macro_defined?("DOSISH", "#include <ruby.h>")
have_header(ioctl_h = "sys/ioctl.h") or ioctl_h = nil
fionread = %w[sys/ioctl.h sys/filio.h sys/socket.h].find do |h|
have_macro("FIONREAD", [h, ioctl_h].compact)
end
if fionread
$defs << "-DFIONREAD_HEADER=\"<#{fionread}>\""
create_makefile(target)
end
else
if have_func("rb_w32_ioctlsocket", "ruby.h")
have_func("rb_w32_is_socket", "ruby.h")
create_makefile(target)
end
end
end
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