config: fix ruby path for ruby 1.8
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@ -87,7 +87,7 @@ module Homebrew
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def describe_ruby
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def describe_ruby
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ruby = which "ruby"
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ruby = which "ruby"
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return "N/A" if ruby.nil?
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return "N/A" if ruby.nil?
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ruby_binary = Utils.popen_read ruby, "-e", \
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ruby_binary = Utils.popen_read ruby, "-rrbconfig", "-e", \
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'include RbConfig;print"#{CONFIG["bindir"]}/#{CONFIG["ruby_install_name"]}#{CONFIG["EXEEXT"]}"'
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'include RbConfig;print"#{CONFIG["bindir"]}/#{CONFIG["ruby_install_name"]}#{CONFIG["EXEEXT"]}"'
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ruby_binary = Pathname.new(ruby_binary).realpath
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ruby_binary = Pathname.new(ruby_binary).realpath
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if ruby == ruby_binary
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if ruby == ruby_binary
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