[Kde-pim] Need help with the undefined reference hack

[Milian Wolff]

On Tuesday 18 October 2011 14:39:19 Christian Mollekopf wrote:
> Hi,
> 
> With the refactoring of the nepomukfeeder to a plugin based architecture
> we
> ran into the problem that the nepomuk_email_feeder in kdepim has to
> depend on
> code in kdepim-runtime (because we can't push the code into kdepimlibs
> yet).
> We decided to go for a workaround until we can push the necessary libs
> into
> kdepimlibs.
> 
> The idea is to create a runtime dependency on the necessary lib in
> kdepim-
> runtime, but I failed so far to create something which actually works.
> To ignore the unresolved symbols (which are supposed to be resolved
> during
> runtime) these options were added:
> set(CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS
> "${CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS}
> -Wl,--allow-shlib-undefined,--warn-
> unresolved-symbols,--no-fatal-warnings")
> 
> Now I need to tell the linker that the library with the name
> nepomukfeederpluginlib will resolve the symbols on runtime, but in a way
> that
> it is not needed to compile the code.
> Currently the nepomukfeederpluginlib is not linked to the
> nepomuk_email_feeder
> at all, but that leads to unresolved symbols during runtime.
> 
> I suppose it should be possible somehow tell the nepomuk_email_feeder
> that the
> nepomukfeederpluginlib will resolve the unknown symbols but couldn't
> figure out
> how so far. Is there maybe some linker option?
> target_link_libraries is not an option because it creates a compiletime
> dependency.

Cannot help sadly, probably just cause some more problems:

- will this work on other platforms?
- will this work with different linkers (esp. ld.gold vs old ld?)

bye
-- 
Milian Wolff
mail at milianw.de
http://milianw.de
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