Bug 459928 – Partial version token on atom not respected

• Status: RESOLVED INVALID
• Product: Portage Development

[Description Cedric Sodhi 2013-03-01 23:30:21 UTC]

> # emerge -a '>xf86-input-wacom-0.17'
> 
> These are the packages that would be merged, in order:
> 
> Calculating dependencies... done!
> [ebuild   R    ] x11-drivers/xf86-input-wacom-0.17.0
> 
> Would you like to merge these packages? [Yes/No]

Emerge considers 0.17>0.17.0 - is that correct?

[Comment 1 Cedric Sodhi 2013-03-01 23:30:59 UTC]

Erratum: "Emerge considers 0.17.0>0.17"

[Comment 2 Zac Medico 2013-03-02 00:01:54 UTC]

Yes, it's specified by app-doc/pms here:

  http://dev.gentoo.org/~ulm/pms/5/pms.html#x1-29008r2

Specifically, this part:

  if Ann > Bnn then 
    return  A > B 
  else if Ann < Bnn then 
    return  A < B 
  end if

[Comment 3 Ulrich Müller 2013-03-02 08:38:42 UTC]

Not a bug. We _define_ the version comparison, and we have chosen that 0.17.0 should be greater than 0.17 because it has more components. (strverscmp(3) makes the same choice, although it differs from our version comparison in other respects.)

The motivation to consider these versions as different is that two ebuilds with equal versions (and package name) are not allowed in the tree at the same time. So one wants to have inequality in as many cases as possible.

[Comment 4 Ulrich Müller 2013-03-02 08:41:33 UTC]

The workaround is also easy:
# emerge -a '>=xf86-input-wacom-0.18'