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Re: FDO usability patch -- cfg and lineno checksum

> Please review the new patch which only implements cfg checksum.
> 
> The auto version generation was introduced in 2002 before FDO support
> was added (so the old way never existed), so it might be better to
> make the change independent of this one.

FDO support was there well before 2002, just with funny combination of flags.
(-fprofile-arcs and -fbranch-probabilities)
2002 was about the time of GCOV format rewrite, but yes, lets change it independently
I will look into the patch ASAP.

Honza
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