[OE-core] Handliong Duplicate Files

[Khem Raj]

> On Jan 11, 2016, at 3:13 AM, Chris Trobridge <christrobridge at hotmail.com> wrote:
> 
> Hi,
> 
> I have been looking into producing a 'python3-dbus' recipe, based on the python-dbus recipe.
> 
> This recipe outputs a couple of files that are version independent but end up overlapping and causing the build to fail:
> /usr/lib/pkgconfig/dbus-python.pc
> /usr/include/dbus-1.0/dbus/dbus-python.h

you can let one provide it and then delete it from other recipe but it means now you created a dependency also
second option is to install the files after renaming. e.g. dbus-python3.pc and dbus-python3.h
the may be you can use alternatives mechanism to symlink python3 versions to provide python2 versions as well
only if python2 is not installed.

> 
> These files are currently marked as python-version independent - the header file has #ifdefs for python3.
> 
> The immediate 'fix' was to follow the advice in the error text to add the file paths to SSTATE_DUPWHITELIST.
> 
> SSTATE_DUPWHITELIST is not mentioned much elsewhere and does not seem like a scalable solution.  Is there a preferred method to resolve the situation where two recipes install the same files?
> 
> Thanks,
> Chris
> 
> --
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