[CMake] Re: How to integrate 3rd-party software into cmake system

[Mike Jackson]

On Jun 10, 2007, at 8:30 AM, Clark J. Wang wrote:

> On 6/10/07, Jack Kelly <endgame.dos at gmail.com> wrote:
> Clark J. Wang wrote:
> >     Clark J. Wang wrote:
> >      > Another question:
> >      >
> >      > By default `make clean' does not know how to clean the 3rd- 
> party
> >      > package. How can I add another command which will be run  
> by `make
> >     clean'?
> >      >
>
> Have you tried:
>
> ADD_CUSTOM_COMMAND(
>    TARGET clean
>    POST_BUILD
>    COMMAND make
>    ARGS clean
>    WORKING_DIR dir
>    VERBATIM
> )
>
> ? I haven't, but it looks like it _should_ work.
>
> It does not work :-(
> Actually cmake does not view `all' or `clean' as targets. Take the  
> following CMakeLists.txt as an example:
>
> ADD_CUSTOM_TARGET(
>     hello
>     COMMAND echo hello world
> )
> ADD_DEPENDENCIES(all hello)
>
> When running cmake it will report error: "ADD_DEPENDENCIES Adding  
> dependency to non-existent target: all".
>
> -- Jack
>

Without doing any checking on this I am going to say try the following:

ADD_LIBRARY ( MyLibrary ${MyLibrary_Srcs})
TARGET_LINK_LIBRARIES(MyLibrary 3rdPartyLib)


ADD_CUSTOM_TARGET(
     hello
     COMMAND echo hello world
)
ADD_DEPENDENCIES(MyLibrary hello)

I believe the idea with cmake is to link to a 'target' within the  
cmake file, not a traditional target like 'all' or 'clean'. My guess  
is that when you 'make MyLibrary' then the 'hello' target will be  
executed also. This might also hold for cleaning a target.

HTH
-- 
Mike Jackson   Senior Research Engineer
Innovative Management & Technology Services
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