10 lines
		
	
	
		
			143 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
		
		
			
		
	
	
			10 lines
		
	
	
		
			143 B
		
	
	
	
		
			Ruby
		
	
	
	
	
	
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								class LinuxRequirement < Requirement
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								  fatal true
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								  satisfy(build_env: false) { OS.linux? }
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								  def message
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								    "Linux is required."
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								  end
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								end
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