On 18.05.2015 11:46, Michael Tremer wrote:
> Hi,
>
> On Sat, 2015-05-16 at 13:59 +0200, Matthias Fischer wrote:
>> Hi,
>>
>> is there a specific reason for commenting the line
>>
>> ...
>> #usr/lib/libboost_math_c99l.so.1.55.0
>> ...
>>
>> in rootfile for 'boost 1_55_0'?
>
> No. I must have overlooked that when I created that file.
>
>> All other '/usr/lib/libboost*'-files are uncommented, only this one is
>> ~deactivated.
>>
>> This came to me while building an update to 'boost 1_58_0'.
>
> Updating boost requires to ship everything that is linked against it
> again and you will need to have something that removes the old
> libraries.

This is seems to be more complex than I thought. How do I find which 
parts of IPFire are "linked against boost"? I can run 'ldd' against a 
binary to find which libraries it needs, but how to work the other way 
around?

> An other strategy would be to leave the old libraries there and just
> ship the new ones. Every time when something that uses boost is updated,
> it will switch from using the old libraries to the new ones.

If I get you right then in this case old and new libs are left in 
'/usr/lib'. Sounds more like some kind of 'patchwork', IMHO.

Regards
Matthias