I would say that this thread went a little bit out of focus.
Maybe it is allowed to add my $.02?
"Traditional" Make does a check like
if timestamp(file1) > timestamp(file2) then
rebuild file2 file1
The fundamental flaw in this is obvious: file1 can be replaced
anytime by
Hi :-)
2009/10/5 :
>
> Tim Murphy wrote:
>> I think that checksumming might benefit some targets. It would be
>> nice to be able to implement different "methods" for different targets
>> - because not all methods work well in all circumstances.
>
>> I have one example where every single file in
Tim Murphy wrote:
> I think that checksumming might benefit some targets. It would be
> nice to be able to implement different "methods" for different targets
> - because not all methods work well in all circumstances.
> I have one example where every single file in a huge build includes 1
> par
Hi,
I think that checksumming might benefit some targets. It would be
nice to be able to implement different "methods" for different targets
- because not all methods work well in all circumstances.
I have one example where every single file in a huge build includes 1
particular header file. Th
Philip Guenther writes:
> (Have you measured how often this sort of thing would save
> recompilation and/or relinking and how much time it would save then?
> What's the comparison to how much time would be spent calculating the
> checksums? If it saves a minute once every 100 compiles but costs
On Mon, Sep 28, 2009 at 11:05 AM, Giuseppe Scrivano wrote:
> it looks like a good idea. Do you think it worths to be discussed with
> automake hackers?
I'm not actually convinced that this checksumming is a good idea,
mainly because I'm not convinced this is enough of a problem. The
point of my
Hi Philip,
it looks like a good idea. Do you think it worths to be discussed with
automake hackers?
Cheers,
Giuseppe
Philip Guenther writes:
> On Fri, Apr 11, 2008 at 2:45 PM, Giuseppe Scrivano wrote:
>> I could find on this ML archives only a thread about this subject: to
>> consider the f
On Fri, Apr 11, 2008 at 2:45 PM, Giuseppe Scrivano wrote:
> I could find on this ML archives only a thread about this subject: to
> consider the file checksum instead of the timestamp.
> Other systems like scons already support this feature and it would be
> great to have it for GNU Make too.
This
On Thu, 2008-08-28 at 09:06 +0200, Giuseppe Scrivano wrote:
> I sent a message to this mailing list some months ago but I still
> didn't get an answer. Doesn't GNU Make want to consider files
> checksum in addition to mtime?
There was a Google SOC project for GNU make which added "user-definable
Eli Zaretskii wrote:
> Thanks. (I'm not the head maintainer, so please wait for Paul and
> others to respond.)
I sent a message to this mailing list some months ago but I still didn't
get an answer. Doesn't GNU Make want to consider files checksum in
addition to mtime?
Giuseppe
___
Tim Murphy wrote:
> One small concern that I have with checksums is that it might take a
> really long time to check large files or a lot of files.
True. However if you have, say, 100MB of objects then the time to
calculate checksums is almost certainly going to be smaller than the
time it takes
Hi,
I am also not a maintainer :-).
One small concern that I have with checksums is that it might take a really
long time to check large files or a lot of files.
This would indicate that one needs to be able to switch checksumming on/off
for different prerequisites.
I think that there should be
2008/4/12, Eli Zaretskii <[EMAIL PROTECTED]>:
> Thanks. (I'm not the head maintainer, so please wait for Paul and
> others to respond.)
>
> > +int
> > +compute_checksum(struct file *new)
> > +{
> > + int checksum = 0;
> > + FILE *f;
> > + char buffer [4096];
> > +
> > + f = fopen (new
> From: Giuseppe Scrivano <[EMAIL PROTECTED]>
> Date: Fri, 11 Apr 2008 23:45:02 +0200
>
> Other systems like scons already support this feature and it would be
> great to have it for GNU Make too.
>
> I attached a patch against the current CVS to add --use-checksum to
> GNU Make, it is just a pro
Hello,
I could find on this ML archives only a thread about this subject: to
consider the file checksum instead of the timestamp.
Other systems like scons already support this feature and it would be
great to have it for GNU Make too.
I attached a patch against the current CVS to add --use-checks
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