Re: How to turn off compiler/linker timestamping?

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From: Dean Ramsier (ramsiernospam_at_nospam.com)
Date: 06/04/04 

Date: Thu, 3 Jun 2004 21:57:00 -0400

Note also that this topic has been discussed a few times, with the same
result. Others have done this kind of comparison to try to demonstrate
validity. You might try searching the newsgoups to find that old thread. 

-- 
Dean Ramsier - eMVP
"Michael J. Salamone [eMVP]" <mikesa#at#entrek#dot#com> wrote in message
news:uHu6ygZSEHA.3140@tk2msftngp13.phx.gbl...
> I don't believe there is a way to turn off the time stamping (by linker).
> You can see the time stamp by running dumpbin /all on the executable.
>
> The only thing I can think of is to roll your own comparison tool - one
that
> parsed through the PEF and ignored the time stamp.  Would be a bit painful
> to write, but the PEF is well-documented and you could do it.  Perhaps
there
> is a (free) utility that already does it.
> -- 
>
> Michael Salamone [eMVP]
> Entrek Software, Inc.
> www.entrek.com
>
>
>
> "Michael Schwab" <michael.schwab@cobecv.com> wrote in message
> news:eNxLbQYSEHA.2780@TK2MSFTNGP09.phx.gbl...
> > Everytime we re-compile/link our software, the CRC on the executable
file
> > (.exe) changes, even if we have made no changes in the source code.
Doing
> a
> > diff shows 1 or more byte changes in three widely separated areas of the
> > file.  More bytes are changed the longer it's been since the last
compile.
> > This pattern makes me think these are some sort of compile-time stamps
> being
> > embedded in the exe file itself.  I don't know if it's the compiler or
> > linker that's doing this.  This happens with eVC++ 3.0 through 4.0 SP3.
> >
> > This makes it impossible to do a validation build from the source code
> > control system copy and prove that there have been no changes, since the
> CRC
> > is always different.
> >
> > Is there some compiler/linker option to turn off this embedding of
> > timestamps, so that the exact same .exe file is created every time you
> > recompile?
> >
> > Thanks,
> > Michael Schwab
> >
> >
>
>

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