[CMake] How to build a library divided in many directories ?

[Oliver Dole]

Hello,

On 2/25/08, packadal <packadal at gmail.com> wrote:
> Hi, I searched for an answer to this question in vain, so I'm asking here.
>
> I am trying to build a library wich is spead among many subdirectories using
> CMake, but I can't seem to do it "the Right Way".
>
> Looks like the right way to do this would be to write a CMakeLists.txt in
> each subdirectory, as this would be cleaner, and much more changes-friendly,
> but I can't seem to build only one library when I do it this way.
>
> example of my source tree :
>
> + src
> |   - Application
> |   - Attributes
> |   - Audio
> .
> .
> .
> |   - Utils
>
> Each directory containing multiple source files for the lib.
> I managed to build the library, putting each and every file in a single
> variable in one file, but this is looking quite ugly...
>
> So how should i do please ?
Here is how I would proceed.
First I assume that you compile all .c files in each sub directories,
then I suppose you have many many files to compile.

AUX_SOURCE_DIRECTORY (Applications APPLICATIONS_SRC)
AUX_SOURCE_DIRECTORY (Attributes ATTRIBUTES_SRC)
...
AUX_SOURCE_DIRECTORY (Utils UTILS_SRC)
LIST (APPEND FULL_SRC
     ${APPLICATIONS_SRC}
     ${ATTRIBUTES_SRC}
...
    ${UTILS_SRC}
)
ADD_LIBRARY (my_lib ${FULL_SRC})

>
> Thanks in advance
>
> P.S. : excuse the poor English, as i'ts not my mother tongue :)
>
> --
>  - Always keep in mind that you may be wrong -
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-- 
Olivier DOLE
Pleyo
Software Engineer