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

On 07/16/2014 06:29 AM, 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?

This package is included in optional channel, but you shouldn't need it, because you are preparing non-SCL package and scl-utils-build is intended only for building SCL packages.

Anyway, what is obviously wrong in your case is generating the python requirements. These generators are delivered in python-devel and python27-python-devel packages. So, if I'm not mistaken, your package (and building environment) must include python27-python-devel but not python-devel. In spec file you should have:
  BuildRequires: python27-python-devel

But be careful about packages installed during building (if you build in your working environment), since I'm not sure which package gets preference in case both python-devel and python27-python-devel are installed.


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-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

Either I'm failing to do something to appease the automagical
detection (which I have no idea how it figures that out), or the
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
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

# Similarly, override __python_requires for automatic dependency
%global __python_requires %{%{scl_python}_python_requires}

     Alan Robertson<alanr 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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