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require 'mkmf'
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if /mswin32|mingw/ !~ RUBY_PLATFORM
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have_header("sys/stropts.h")
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have_func("setresuid")
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$CFLAGS << "-DHAVE_DEV_PTMX" if /cygwin/ === RUBY_PLATFORM
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if have_func("openpty") or
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have_func("_getpty") or
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have_func("ioctl")
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create_makefile('pty')
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end
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end
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