[CMake] Building Subdirectories For A Single Target

[Mike Jackson]

If I am understanding you correct, you would like a CMake file in  
each of the subdirectories that lists the source files in that  
subdirectory that should be included in the build? Try the following:

In your top level CMakeLists.txt file----------

SET (PROJECT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
SET (PROJECT_SOURCE_FILES
	${PROJECT_SOURCE_DIR }/TopLevel.cpp
)
INCLUDE ( ${PROJECT_SOURCE_DIR }/SubDir1/Sources.cmake)


--- In a File called "Sources.cmake" in a subdirectory called  
SubDir1--------

SET (PROJECT_SOURCE_FILES ${PROJECT_SOURCE_FILES}
	SubDir1_Source1.cpp
	SubDir1_Source1.cpp
)


Depending on the style of your "#includes" you may need something like:

INCLUDE_DIRECTORIES( ${PROJECT_SOURCE_DIR }/SubDir1 )

ADD_EXECUTABLE (MyExe ${PROJECT_SOURCE_FILES} )


All this is untested but I do something similar to pull in sources  
from a main project into a secondary project because creating a  
convenience library was not working.

Those projects can be found here:
http://titanium.imts.us/viewvc/Task_4/PVPhaseField/   (Secondary  
Project - Look in the "Resources/UseMXADataModel.cmake", which is  
included from the top level CMakeLists.txt file [line 39] )
http://titanium.imts.us/viewvc/Task_7/MXADataModel/ (Main Project -  
Source files are pulled from here)


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


On Oct 8, 2007, at 9:42 AM, Tim wrote:

> My project is a shared library. I just moved the
> project over to CMake from autotools. The sources for
> the target is divided up into several
> subdirectories(which also contain sources in
> subdirectories). I need to be able to build all the
> sources recursively and have them all linked into the
> same target. I can't seem to find a single clue
> anywhere of how to accomplish it. Even looking at
> existing projects and examples the only instances
> where I see subdirectories being used with CMake is
> when they are different targets.
> So far the only way I can get the project to build is
> to put a list of all source files in the
> CMakeLists.txt of the top-level source directory which
> to me seems like an ugly hack. Not to mention if I try
> to use CMake to generate an Xcode project file it puts
> all the sources into one flat folder which looks very,
> especially since some files have the same name but are
> in different directories.
>
> I am also looking for a way to execute a script in my
> project directory with an argument(The argument being
> the install root of the project).
>
>
> 	
> 	
> 		
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