From: Leo <minilith@...>
Date: 2009-04-09T00:42:39+09:00
Subject: Re: performing an action only the first time a function called

> $directXSDKBootstrapped = false
>
> def bootstrapDirectXSDK
>   if !$directXSDKBootstrapped
>     bootstrapBuildToolsDirectory("DirectX/#{DIRECTX_VERSION}")
>     $directXSDKBootstrapped = true
>     $directXSDKBootstrapped.freeze
>   end
> end

You could redefine bootstrapDirectXSDK:

$directXSDKBootstrapped = false

def bootstrapDirectXSDK
    bootstrapBuildToolsDirectory("DirectX/#{DIRECTX_VERSION}")
    $directXSDKBootstrapped = true
    $directXSDKBootstrapped.freeze
    def bootstrapDirectXSDK
    end
end