29 lines
654 B
Ruby
29 lines
654 B
Ruby
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require 'mkmf'
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target = "io/wait"
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unless defined?(checking_for)
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def checking_for(msg)
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STDOUT.print "checking for ", msg, "..."
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STDOUT.flush
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STDOUT.puts((r = yield) ? "yes" : "no")
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r
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end
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end
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unless defined?(macro_defined?)
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def macro_defined?(macro, src, opt="")
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try_cpp(src + <<"SRC", opt)
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#ifndef #{macro}
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# error
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#endif
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SRC
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end
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end
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unless /djgpp|mswin|mingw|human/ =~ RUBY_PLATFORM
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fionread = %w[sys/ioctl.h sys/filio.h].find do |h|
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checking_for("FIONREAD") {macro_defined?("FIONREAD", "#include <#{h}>\n")}
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end
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exit 1 unless fionread
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$defs << "-DFIONREAD_HEADER=\"<#{fionread}>\""
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create_makefile(target)
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end
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