[OE-core] Handliong Duplicate Files

[Chris Trobridge]

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
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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