equality time test in source and object code check

equality time test in source and object code check

[stefan]

Hi,

I'm not certain if this is a Bug. But it looks like there is an 
equality test of times for the check if the object file is in sync with
the source file. I could imagine that the rule that has to be obeyed is

obj-code-file-time >= source-code-time

testing for equality looks a little scary to me

/Stefan

Re: equality time test in source and object code check

[Andy Wingo]

On Wed 14 Apr 2010 21:40, stefan <stefan.tampe@spray.se> writes:

> I'm not certain if this is a Bug. But it looks like there is an 
> equality test of times for the check if the object file is in sync with
> the source file. I could imagine that the rule that has to be obeyed is
>
> obj-code-file-time >= source-code-time
>
> testing for equality looks a little scary to me

That test won't work normally, because often when installing debs or
rpms, the file timestamps come from the rpm and not the time of
installation.

So, we check timestamp equality. Perhaps we should use an epsilon, but
OTOH guile should be able to timestamp files as precisely as the
filesystem supports, including nanosecond resolutions, so perhaps this
won't be a problem.

Or, perhaps this is wishful thinking :)

A
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