[CMake] What is the preferred way to avoid "same name already exists" error

[Alan W. Irwin]

tOn 2013-10-03 11:24-0700 Jimi Damon wrote:

> Hi,
>
> I have a number of directories that are named according to an acquisition 
> board in our full product line.  Under each directory there are sample 
> programs labeled "sample1.c", "sample2.c" ...etc.   While this isn't a very 
> useful naming convention, I ran into the problem of when I migrated the 
> current GNU makefile based system over to CMAKE, I tried to create a 
> structure like the following
>
> add_subdirectory( samples/Product1 )
> add_subdirectory( samples/Product2 )
>
>
> What happens is that I get the error saying
> * add_executable cannot create target "sample" because another target with
>  the same name already exists.  The existing target is an executable created
>  in source directory*
>
> What I was trying to get is a namespace encapsulated sample, such that I 
> would have to issue a
>
> make samples/Product1/sample1  in order to build that sample.
>
> Is there a way to prevent these namespace collisions other than just renaming 
> every single executable to have a unique name ? I want to know the correct 
> answer to this because I have a feeling that in the future I won't always 
> want to keep every single target name unique.

One possibility is to make each product an individual CMake project
and implement an overall CMake project that used ExternalProject_Add
to build any of those products as needed and with appropriate
dependencies between them.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
__________________________

Linux-powered Science
__________________________
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