Duplicate documentation files have been detected in the package
builds for Rawhide and Fedora 20. The likely cause is the unversioned
docdirs change in Fedora 20.

If your package %installs documentation files into %{_docdir}/%{name}/ to
store them in a subpackage, this now conflicts with using the %doc
macro in the base package. Since Fedora 20, the %doc macro installs into
the unversioned %{_docdir}/%{name}/ and includes everything in that
directory. One obvious fix is to decide between either using %doc or
installing into %{_docdir}/%{name}/ manually as explained in the
Packaging tricks Wiki section (for past dist releases and the versioned
docdir).

General discussion of this problem:
https://fedorahosted.org/fpc/ticket/338

Further information:
http://fedoraproject.org/wiki/Changes/UnversionedDocdirs
https://fedoraproject.org/wiki/Packaging_tricks#Installing_documentation:_2_paths

[semi-automated bug report]

[...]

=> chicken-4.8.0.4-2.fc20.src.rpm
=> chicken-doc-4.8.0.4-2.fc20.i686 in fedora-development-i386
  File conflict with: chicken-4.8.0.4-2.fc20.i686
     /usr/share/doc/chicken/manual/Accessing external objects.html
     /usr/share/doc/chicken/manual/Acknowledgements.html
     /usr/share/doc/chicken/manual/Basic mode of operation.html
     /usr/share/doc/chicken/manual/Bibliography.html
     /usr/share/doc/chicken/manual/Bugs and limitations.html
     /usr/share/doc/chicken/manual/C interface.html
     /usr/share/doc/chicken/manual/Callbacks.html
     /usr/share/doc/chicken/manual/Cross development.html
     /usr/share/doc/chicken/manual/Data representation.html
     /usr/share/doc/chicken/manual/Declarations.html
     /usr/share/doc/chicken/manual/Deployment.html
     /usr/share/doc/chicken/manual/Deviations from the standard.html
     /usr/share/doc/chicken/manual/Embedding.html
     /usr/share/doc/chicken/manual/Exceptions.html
     /usr/share/doc/chicken/manual/Extensions to the standard.html
     /usr/share/doc/chicken/manual/Extensions.html
     /usr/share/doc/chicken/manual/Foreign type specifiers.html
     /usr/share/doc/chicken/manual/Getting started.html
     /usr/share/doc/chicken/manual/Interface to external functions and variables.html
     /usr/share/doc/chicken/manual/Locations.html
     /usr/share/doc/chicken/manual/Macros.html
     /usr/share/doc/chicken/manual/Modules.html
     /usr/share/doc/chicken/manual/Non-standard macros and special forms.html
     /usr/share/doc/chicken/manual/Non-standard read syntax.html
     /usr/share/doc/chicken/manual/Other support procedures.html
     /usr/share/doc/chicken/manual/Parameters.html
     /usr/share/doc/chicken/manual/Supported language.html
     /usr/share/doc/chicken/manual/The R5RS standard.html
     /usr/share/doc/chicken/manual/The User's Manual.html
     /usr/share/doc/chicken/manual/Types.html
     /usr/share/doc/chicken/manual/Unit data-structures.html
     /usr/share/doc/chicken/manual/Unit eval.html
     /usr/share/doc/chicken/manual/Unit expand.html
     /usr/share/doc/chicken/manual/Unit extras.html
     /usr/share/doc/chicken/manual/Unit files.html
     /usr/share/doc/chicken/manual/Unit irregex.html
     /usr/share/doc/chicken/manual/Unit library.html
     /usr/share/doc/chicken/manual/Unit lolevel.html
     /usr/share/doc/chicken/manual/Unit ports.html
     /usr/share/doc/chicken/manual/Unit posix.html
     /usr/share/doc/chicken/manual/Unit srfi-1.html
     /usr/share/doc/chicken/manual/Unit srfi-13.html
     /usr/share/doc/chicken/manual/Unit srfi-14.html
     /usr/share/doc/chicken/manual/Unit srfi-18.html
     /usr/share/doc/chicken/manual/Unit srfi-4.html
     /usr/share/doc/chicken/manual/Unit srfi-69.html
     /usr/share/doc/chicken/manual/Unit tcp.html
     /usr/share/doc/chicken/manual/Unit utils.html
     /usr/share/doc/chicken/manual/Using the compiler.html
     /usr/share/doc/chicken/manual/Using the interpreter.html
     /usr/share/doc/chicken/manual/chicken.png
     /usr/share/doc/chicken/manual/faq.html
     /usr/share/doc/chicken/manual/index.html
     /usr/share/doc/chicken/manual/manual.css

=> chicken-4.8.0.4-2.fc20.src.rpm
=> chicken-4.8.0.4-2.fc20.i686 in fedora-development-i386
  File conflict with: chicken-doc-4.8.0.4-2.fc20.i686
     /usr/share/doc/chicken/manual/Accessing external objects.html
     /usr/share/doc/chicken/manual/Acknowledgements.html
     /usr/share/doc/chicken/manual/Basic mode of operation.html
     /usr/share/doc/chicken/manual/Bibliography.html
     /usr/share/doc/chicken/manual/Bugs and limitations.html
     /usr/share/doc/chicken/manual/C interface.html
     /usr/share/doc/chicken/manual/Callbacks.html
     /usr/share/doc/chicken/manual/Cross development.html
     /usr/share/doc/chicken/manual/Data representation.html
     /usr/share/doc/chicken/manual/Declarations.html
     /usr/share/doc/chicken/manual/Deployment.html
     /usr/share/doc/chicken/manual/Deviations from the standard.html
     /usr/share/doc/chicken/manual/Embedding.html
     /usr/share/doc/chicken/manual/Exceptions.html
     /usr/share/doc/chicken/manual/Extensions to the standard.html
     /usr/share/doc/chicken/manual/Extensions.html
     /usr/share/doc/chicken/manual/Foreign type specifiers.html
     /usr/share/doc/chicken/manual/Getting started.html
     /usr/share/doc/chicken/manual/Interface to external functions and variables.html
     /usr/share/doc/chicken/manual/Locations.html
     /usr/share/doc/chicken/manual/Macros.html
     /usr/share/doc/chicken/manual/Modules.html
     /usr/share/doc/chicken/manual/Non-standard macros and special forms.html
     /usr/share/doc/chicken/manual/Non-standard read syntax.html
     /usr/share/doc/chicken/manual/Other support procedures.html
     /usr/share/doc/chicken/manual/Parameters.html
     /usr/share/doc/chicken/manual/Supported language.html
     /usr/share/doc/chicken/manual/The R5RS standard.html
     /usr/share/doc/chicken/manual/The User's Manual.html
     /usr/share/doc/chicken/manual/Types.html
     /usr/share/doc/chicken/manual/Unit data-structures.html
     /usr/share/doc/chicken/manual/Unit eval.html
     /usr/share/doc/chicken/manual/Unit expand.html
     /usr/share/doc/chicken/manual/Unit extras.html
     /usr/share/doc/chicken/manual/Unit files.html
     /usr/share/doc/chicken/manual/Unit irregex.html
     /usr/share/doc/chicken/manual/Unit library.html
     /usr/share/doc/chicken/manual/Unit lolevel.html
     /usr/share/doc/chicken/manual/Unit ports.html
     /usr/share/doc/chicken/manual/Unit posix.html
     /usr/share/doc/chicken/manual/Unit srfi-1.html
     /usr/share/doc/chicken/manual/Unit srfi-13.html
     /usr/share/doc/chicken/manual/Unit srfi-14.html
     /usr/share/doc/chicken/manual/Unit srfi-18.html
     /usr/share/doc/chicken/manual/Unit srfi-4.html
     /usr/share/doc/chicken/manual/Unit srfi-69.html
     /usr/share/doc/chicken/manual/Unit tcp.html
     /usr/share/doc/chicken/manual/Unit utils.html
     /usr/share/doc/chicken/manual/Using the compiler.html
     /usr/share/doc/chicken/manual/Using the interpreter.html
     /usr/share/doc/chicken/manual/chicken.png
     /usr/share/doc/chicken/manual/faq.html
     /usr/share/doc/chicken/manual/index.html
     /usr/share/doc/chicken/manual/manual.css