Resolving package conflicts (pkg set -o?)

[Norman Gray]

Or (the same question more compactly expressed) is there a general 
strategy for dealing with package conflicts, where two packages install 
files at the same path?

On 10 Aug 2018, at 18:10, Norman Gray wrote:

> Greetings.
>
> When installing the 'ceph' package, I get an error:
>
> pkg: openldap-client-2.4.46 conflicts with openldap-sasl-client-2.4.46 
> (installs files into the same place).  Problematic file: 
> /usr/local/bin/ldapadd
>
> I'm not sure how best to resolve this.  Can anyone offer advice?
>
> This happens because I've installed the openldap-sasl-client package 
> in preference to openldap-client (or rather, the nss-pam-ldapd-sasl 
> package installs the former rather than the latter).  I take it that 
> the two packages would be broadly equivalent in function from the 
> point of view of dependencies.  However I'm not sure what the real 
> difference is between these two alternatives.
>
> One way of resolving this appears to be to use pkg set -o 
> net/openldap24-client:net/openldap24-sasl-client, as mentioned in a 
> UPDATING entry of 20121212 (I haven't tried this yet).
>
> However the pkg-set(8) manpage suggests this is deprecated, I can't 
> find any way to reverse this if I mess up, and the discussion at 
> <https://forums.freebsd.org/threads/pkg-list-origins.53689/> suggests 
> this is a rather desperate measure, in the sense that (I quote) 
> 'there's no going back', and there seems to be no way to discover 
> later what fixes have been applied.  That is, this sounds highly 
> breakable, and pretty clearly not TRTTD.
>
> Section 4 of the handbook doesn't seem to cover this situation.
>
> I can't think of where else to look.
>
> I (vaguely) imagine I could get round this by installing ceph's 
> dependencies via pkg by hand, and then building net/ceph using 
> portmaster.  Though I see that that has an 'R-dep' on openldap-client, 
> so that might just be a longer route to the same problem.
>
> I don't really want to build ceph from source.  I doubt that'd be hard 
> to do, but it'd be annoying to maintain (and hence errorprone).
>
> I can't be the first to have this type of problem, so I expect I'm 
> missing something pretty obvious.
>
> Best wishes,
>
> Norman
>
>
> -- 
> Norman Gray  :  https://nxg.me.uk
> SUPA School of Physics and Astronomy, University of Glasgow, UK

-- 
Norman Gray  :  https://nxg.me.uk
SUPA School of Physics and Astronomy, University of Glasgow, UK