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

Bohuslav Kabrda bkabrda at redhat.com
Wed Jul 16 08:21:38 UTC 2014


----- Original Message -----

> Requires: %{scl_prefix_python}-scldevel
> ^^^^^^
> I think you are missing the "-"

Nope, %{scl_prefix_python} should expand to "python27-", e.g. if defined, it should already contain the "-". Alan, where are your packages coming from? We added the -scldevel packages to RHSCL 1.1 downstream and I can also see one on scl.org [1]. Are you using older builds of python27 SCL, perhaps from RHSCL 1.0? 

Slavek 

[1] https://www.softwarecollections.org/repos/rhscl/python27/epel-6-x86_64/ 

> on RHEL at least - I see this:

> #yum info python27-scldevel
> Loaded plugins: langpacks, product-id, subscription-manager
> Available Packages
> Name : python27-scldevel
> Arch : x86_64
> Version : 1.1
> Release : 19.el7
> Size : 5.5 k
> Repo : rhel-workstation-rhscl-7-rpms/7Workstation/x86_64
> Summary : Package shipping development files for python27
> License : GPLv2+
> Description : Package shipping development files, especially usefull for
> : development of packages depending on python27 Software
> : Collection.

> On 07/16/2014 12:41 AM, Alan Robertson wrote:

> > Similar issue with this line:
> 
> > Requires: %{scl_prefix_python}scldevel
> 

> > There is no scldevel package, nor a python27-scldevel
> 

> > On 07/15/2014 10:29 PM, Alan Robertson wrote:
> 

> > > 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
> > 
> 

> > > _______________________________________________
> > 
> 
> > > SCLorg mailing list SCLorg at redhat.com
> > > https://www.redhat.com/mailman/listinfo/sclorg
> > 
> 

> > --
> 
> > 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
> 

> > _______________________________________________
> 
> > SCLorg mailing list SCLorg at redhat.com
> > https://www.redhat.com/mailman/listinfo/sclorg
> 

> _______________________________________________
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-- 
Regards, 
Bohuslav "Slavek" Kabrda. 
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