question about patent

[Callum Lerwick]

On Tue, 2009-03-24 at 23:40 +0900, robert song wrote:
> Hello, everyone.
> Now I am using Pettis-Hansen method as follows to reorder functions.
> http://www.cs.virginia.edu/kim/courses/cs771/papers/pettis90profile.pdf
> 
> But I found that the algorithm has its patent as below.
> http://www.freepatentsonline.com/EP0459192.html
> 
> So if I use this algorithm in my codes, it will infringe the HP patent.
> Does it mean that this algorithm can not be used in codes ?
> Is there any method to deal with this problem ?

... Doesn't gcc do this? Just going off the patent abstract, it sounds
like gcc already infringes. But in law, details matter...
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