[CMake] directory traverse guidance

[luxInteg]

On Tuesday 25 January 2011 07:53:24 Andreas Pakulat wrote:
> On 25.01.11 02:57:27, luxInteg wrote:
> > Greetings
> > 
> > I am learning cmake
> > 
> > consider my project  with  two directories  dir1 and dir2
> > 
> > if I want to:-
> > move to dir1 and  add a library libA  in dir1
> > move to dir2 and  add a library libB  in dir2
> > move back to dir1 and add a test  testA in dir1
> > move back to dir2 and add a test  testB to dir2
> > 
> > 
> > (the moving back is because of  the  interdependencies  of the tests with
> > the libraries  i.e.       testA reaquires libB etc))
> > 
> > how do I do this?
> 
> You don't. All you need is 2 CMakeLists.txt, one in dir1 with libA and
> testA targets and the other in dir2 with libB and testB targets. CMake
> as a declarative language (to a certain extent) does not depend on the
> order in which you declare targets and use them.


Before  I made my posting, I tried a setup (as you suggested)  but with more 
than two directories -lets call this N
 
my extended setup  had   dir1 ......dirN 
each with 
add_library(someLIB     ${sourceFiles(1...N)})
add_depedencies(someLIB someTEST)
then
add_test(someTEST   someFILE(1...N).c )
target_link_libraries(someTEST
libA
libB
.....
libN )

and it failed siting some  'graph'  dependency problem.

Basically I have to build a set of tests after building some static libraries  
and some of these tests require linking to  libraries  that occur much later 
in the   build-scheme.  {In other words libA.a might be built and testA (built 
in the same directory as liba.A}  but it   requires linking not only to libA.a 
but to   the 'later-built'  libN.a) 

 Guidance on how this is 'do-able'  will be appreciaed.

sincerely
luxInteg.