Feature request: improved build-id generation

[Alan Modra]

On Wed, Mar 14, 2018 at 10:36:26PM +0000, Andy Lutomirski wrote:
>  --build-id=md5, sha1: MD5 and SHA1 are deprecated.

You're confusing security with identification.  The use of these
hashes for identification is fine.  If not, stop using git and rsync.

> --build-id=0xhexstring: avoiding accidental collisions is unpleasant,
> and how is anyone supposed to come up with an intelligent choice for
> 0xhexstring?

By inserting the output of your hashing algorithm of choice.  For
example
--build-id=0x`sha256sum <file> | sed -e 's, .*,,'`

-- 
Alan Modra
Australia Development Lab, IBM