[CMake] Sub dependencies?

[Glenn Coombs]

Add the sub dependencies that library A has with target_link_libraries():

    target_link_libraries(A png)

--
Glenn

On 11 August 2011 10:02, Doug <douglas.linder at gmail.com> wrote:

> Hrm... this seems like something cmake should be able to do, but I don't
> know how to make it work.
>
> If I have library A, that depends on a library and an executable project
> that depends on library A, how can the executable project resolve the sub
> dependencies from A?
>
> Specifically libpng in my case:
>
> I have a library that depends on libpng.
>
> I run cmake to build the library no problem.
>
> Then I try to compile a program that depends on the library and get a heap
> of errors like:
>
>  undefined reference to `png_set_read_fn'
>  etc. etc.
>
> Presumably this is something about how I depend on the library? I'm using
> the LibFindMacros, so my cmake module looks like this for the library:
>
> include(LibFindMacros)
>
> find_path(LIBNW_INCLUDE_DIR NAMES nw.h PATHS ${LIBNW_PKGCONF_INCLUDE_DIRS})
>
> find_library(LIBNW_LIBRARY NAMES nw PATHS ${LIBNW_PKGCONF_LIBRARY_DIRS})
>
> set(LIBNW_PROCESS_INCLUDES LIBNW_INCLUDE_DIR)
> set(LIBNW_PROCESS_LIBS LIBNW_LIBRARY LIBNW_LIBRARIES)
>
> libfind_process(LIBNW)
>
>  I know I can use ADD_SUBDIRECTORY to include stuff for a sub dir, but that
> isn't really appropriate in this case.
>
> ~
> Doug.
>
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