role of executable_checksum & LTO?

[Jonathan Wakely]

On 29 June 2010 18:11, Basile Starynkevitch wrote:
> On Tue, 2010-06-29 at 12:50 -0400, Diego Novillo wrote:
>>
>> Why don't we cross that bridge when we get to it?
>
> [I am not sure to understand the above sentence. What is the bridge?
> What is crossing it? Remember that I am not a native English speaker]

http://www.google.co.uk/search?q=%22cross+that+bridge%22