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require 'mkmf'
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printf("checking for OS... ")
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STDOUT.flush
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os = /-([a-z]+)/.match(RUBY_PLATFORM)[1]
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puts(os)
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$CFLAGS += " -D#{os}"
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if !(os == 'mswin' or os == 'bccwin')
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  exit(1) if not have_header("termios.h") or not have_header("unistd.h")
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end
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create_makefile("serialport")
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