[CMake] Executable in the main directory

[Ryan Pavlik]

You can specify partial paths in CMakeLists files - that is, if you
want an executable target created in the main directory, but the files
are in the "src" directory, you can do something like
add_executable(mytarget src/main.cpp)

It sounds like you might have a situation where you have multiple
static library targets for the modules, and one executable target
(needs at least 1 source file - which one has the "main()" function?)
that links to these static library targets.

Ryan

On Wed, Feb 2, 2011 at 3:53 PM, Enrique Izaguirre
<enrique.izaguirre at gmail.com> wrote:
> Thanks a lot Eric
>
> Actually I am trying to move a project already done to CMake, and it doesn't
> have any executable in the top directory, it is now done in Windows under
> Visual Studio.
>
> In the top directory I have a CMakeLists,txt that calls each one of the
> subdirectories in which I have also their respective CMakeLIsts.txt.
>
> But I don't know at the end how to put everything together in an executable.
> Because each directory compiles independently, like a module. I don't know
> how it is done in Visual Studio.
>
> Thanks again
>
> Enrique
>
> On Wed, Feb 2, 2011 at 3:42 PM, Eric Noulard <eric.noulard at gmail.com> wrote:
>>
>> 2011/2/2 Enrique Izaguirre <enrique.izaguirre at gmail.com>:
>> > Hello,
>> >
>> > Is it possible to create an executable in your top directory if you
>> > don't
>> > have there any program? I mean, if all your programs .c and .cpp are in
>> > subdirectories contained in your top directory, each one with its own
>> > CMakeLists.txt.
>> >  I have three subdirectories, and all my programs are in these
>> > subdirectories. I don't have any in my main directory, but the
>> > executable
>> > should be created in the main directoy. Is it possible? How?
>>
>> Yes you can.
>>
>> You can control the output directory for executable/library using
>> EXECUTABLE_OUTPUT_PATH
>> and/or
>> LIBRARY_OUTPUT_PATH
>> see;
>> http://www.cmake.org/Wiki/CMake_Useful_Variables
>>
>> From your question, I think you may be trying to do something that
>> is not in the CMake-way-of-building.
>>
>> First of all using CMake ones tends to suggest to build 'out-of-tree':
>> http://www.cmake.org/Wiki/CMake_FAQ#Out-of-source_build_trees
>>
>> Then do you need your executables "in the top dir" for devel purpose
>> or something else?
>>
>>
>> --
>> Erk
>> Membre de l'April - « promouvoir et défendre le logiciel libre » -
>> http://www.april.org
>
>
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-- 
Ryan Pavlik
HCI Graduate Student
Virtual Reality Applications Center
Iowa State University

rpavlik at iastate.edu
http://academic.cleardefinition.com
Internal VRAC/HCI Site: http://tinyurl.com/rpavlik