Donnie Berkholz pisze:
> On 06:24 Wed 16 Apr     , Ciaran McCreesh wrote:
>   
>> What all are blocks used for?
>>
>> a) Marking that two unrelated packages are mutually incompatible at
>> runtime because they happen to collide, for example on a commonly named
>> executable.
>>
>> b) Marking that two related implementations are mutually incompatible at
>> runtime because they both provide the same binary.
>>
>> c) Marking that a file that used to be provided by one package is now
>> provided by another package that is either depending upon or depended
>> upon by the original package.
>>
>> d) Marking that a package has been moved into another package.
>>
>> Are there any other uses?
>>     
>
> A slight tweak that you may have already considered: a single package is 
> split into multiple packages with a metabuild (named the same as the 
> original single package) in a newer version -- for example, modularized 
> X.
>
>   
>> For future EAPIs, being able to tell the package manager that your
>> block is of one of the types above will help the package manager smooth
>> out the upgrade path for users. For example, for class d) blocks such
>> as the recent coreutils / mktemp mess, the package manager can suggest
>> to the user to install the new package and then uninstall the old
>> package, rather than forcing the user to uninstall the old package by
>> hand (possibly leaving their system without critical utilities) and then
>> install the new package.
>>
>> I strongly suspect that in many (but not all) cases the package manager
>> could be making users' lives a lot easier than it currently is...
>>     
>
> Sounds like a great idea.
>
> Thanks,
> Donnie
>   
Yes... and then all trashes like old libs are inside system. Other thing 
is when some files gets from one package to other. If You install old 
version of package "A" and then some of files get to package "A1" as an 
update and some part of package "A" get's into "B" package. When we 
update package "A" to "A1" we can be in trouble when installing 
automaticly B and uninstalling "A". Think about that.
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