[cmake-developers] target_link_libraries and --start-group/--end-group ?

[Robert Maynard]

I believe what you want to do is bring the libraries in as imported targets
and set the target property IMPORTED_LINK_INTERFACE_MULTIPLICITY (
http://www.cmake.org/cmake/help/v3.0/prop_tgt/IMPORTED_LINK_INTERFACE_MULTIPLICITY.html
).

By default the value should be 2 which means that we will list all static
libraries twice, but you might need to increase the value.

I would also read the resolution of bug 14463 (
http://public.kitware.com/Bug/view.php?id=14463) for a quick explanation of
how the target_link_libraries order determines the static link ordering.


On Mon, Jan 5, 2015 at 2:09 PM, Robert Goulet <Robert.Goulet at autodesk.com>
wrote:

>  Hi,
>
>
>
> My project needs to link with an external library which actually consist
> of a set of libraries. Adding these libs using target_link_libraries should
> be working just fine but unfortunately these libs have a bunch of circular
> dependencies, so it fails. In the makefile, we link with these libs using
> this syntax:
>
>
>
> -Wl,--start-group …libs… -Wl,--end-group
>
>
>
> …so that the linker is able to correctly find all symbols. What’s the
> proper way to deal with this using CMake? I tried to add the group flags to
> target_link_libraries but it does not work. Thanks!
>
>
>
>
>
>
>
> *Robert Goulet*
>
> Senior Software Developer
>
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