Re: md5sum

[Bob Proulx]

PHAM Cao Tam Dan     AWL-T&P wrote:
> When I try a md5sum on a binary, the md5sum changes whether the
> sources were compiled at a moment or at another moment, and
> depending the machine where I compile. Hypothesis: sources are the
> same.

Some compilers encode a timestamp into the executable binary.  This
timestamp causes every binary to be uniquely different and therefore
each will have a uniquely different md5sum.

You can verify this by compiling and saving two binaries and
comparing them.  Utilities such as 'cmp' will report which bytes are
different.

Your email included a number of very annoying disclaimers.  They are
useless and unenforceable.  Many people refuse to reply to messages
that include them.  In the future please consider using a different
email account from which to post messages.  There are many free email
accounts available on the net.

Bob