[scl.org] Question about generating RPMs that depend on SCLs (like python27)

[Alan Robertson]

So, I'm trying to take the page you pointed at seriously - so I added 
this line from that page:

BuildRequires: scl-utils-build


There is no such package.  What was intended here?


On 07/15/2014 04:09 PM, Orion Poplawski wrote:
> On 07/15/2014 04:06 PM, Orion Poplawski wrote:
>> On 07/15/2014 03:55 PM, Alan Robertson wrote:
>>> OK.  It was pointed out to me off-list that I was comparing the 
>>> wrong thing.
>>> I should have been looking at python27-python.  Here's what that 
>>> package shows:
>>>
>>> bash-4.1# *rpm -q --provides python27-python*
>>> python27-python-abi = 2.7
>>> python27-python(abi) = 2.7
>>> python27-Distutils
>>> python27-python2 = 2.7.5
>>> python27-python-sqlite = 2.3.2
>>> python27-python-ctypes = 1.0.1
>>> python27-python-hashlib = 20081120
>>> python27-python-uuid = 1.31
>>> python27-python-argparse = 2.7.5-7.el6.centos.alt
>>> python27-python = 2.7.5-7.el6.centos.alt
>>> python27-python(x86-64) = 2.7.5-7.el6.centos.alt
>>> bash-4.1#
>>>
>>> Either I'm failing to do something to appease the automagical 
>>> python-version
>>> detection (which I have no idea how it figures that out), or the 
>>> property
>>> names in python27-python should not have the "python27-" prefix.
>>>
>>> Anyone know which it is - and how to deal with it?
>>>
>>> It seems to me like the attributes of the provides should not be 
>>> prefixed by
>>> python27.  But I'm new to this SCL stuff...
>>
>> FWIW - they "python(abi) = ##" requires is added by 
>> /usr/lib/rpm/pythondeps.sh
>> as part of the standard rpm dependency generation.  So yes, for this 
>> to work
>> with the scl, either the scl needs to provide "python(abi) = 2.7" or 
>> you will
>> need to disable the automatic requires generation or filter out the
>> python(abi) line.
>>
>> We're all new to this SCL stuff.... :)
>>
>>
>
> Here's the magic from 
> https://access.redhat.com/documentation/en-US/Red_Hat_Developer_Toolset/2/html/Software_Collections_Guide/sect-Extending_the_python27_and_python33_Software_Collections.html
>
>
> # Similarly, override __python_requires for automatic dependency 
> generator
> %global __python_requires %{%{scl_python}_python_requires}
>
>


-- 
     Alan Robertson <alanr at unix.sh> - @OSSAlanR

"Openness is the foundation and preservative of friendship...  Let me claim from you at all times your undisguised opinions." - William Wilberforce

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