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require 'mkmf'
ok = true
hdr = nil
case
when macro_defined?("_WIN32", "")
have_func("rb_w32_map_errno", "ruby.h")
when hdr = %w"termios.h termio.h".find {|h| have_header(h)}
have_func("cfmakeraw", hdr)
when have_header(hdr = "sgtty.h")
%w"stty gtty".each {|f| have_func(f, hdr)}
else
ok = false
end
have_header("sys/ioctl.h")
have_func("rb_io_get_write_io", "ruby/io.h")
if ok
create_makefile("io/console")
end
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