[Insight-users] Build issues for VTK with respect to FLTK

[Luis Ibanez]

Hi Kent,

What happens is the CMake marks all the variables
related with FLTK libraries as "Advanced".

The result, is that those variables are not presented
to the user unles the "Advanced" option is selected
in the GUI (windows or unix).

So, CMake probably didn't find the FLTK libraries,
filled the corresponding variables as 'NOTFOUND' and
you didn't see them because you are in the non-advanced
mode.


Please do the following:

1) rerun CMake
2) select "Advanced" in the interface
3) look for the variables

    FLTK_BASE_LIBRARY
    FLTK_GL_LIBRARY
    FLTK_FORMS_LIBRARY
    FLTK_IMAGES_LIBRARY

and make sure they are pointing to

    fltk.a
    fltk_gl.a
    fltk_forms.a
    fltk_images.a

respectively.

4) hit configure
5) hit generate

6) recompile


That should solve the problem...

-----

The file FindFLTK.cmake in the cvs version
of CMake has already been modified to not
mark these variables as advanced.

-----

About your assumption with the nightly builds,
You are right, they are building all the
applications including those using VTK and FLTK.

Keep in mind, however, that ITK doesn't require
nor depends on VTK or FLTK. These libraries are
only used by the demo applications distributed
with ITK.  It is likely that those applications
will be distributed in the future as a separate
package in order to avoid confusions.


Please let us know if you have further questions,



    Thanks


      Luis




----------------------------------------------

Kent Williams wrote:

> I'm a novice ITK developer trying to figure things out, and something came up 
> today that's been mystifying me -- Cmake is not adding the fltk libraries to 
> the projects in Applications that need them -- starting with 
> DistanceMapFilter.
> 
> I've verified that fltk-1.1.2 is built correctly, and that the CMakeCache.txt
> has the correct path for the fltk libraries and include files.  But the 
> Makefile doesn't contain -lfltk -lfltk_forms -lfltk_gl etc.  I find this 
> rather baffling -- I can add the '-l' clauses to the link line in the 
> CMake-generated Makefile and it builds without a hitch, but there's something 
> screwy about generating the library dependencies.
> 
> My understanding is that 
> This is on RedHat Linux -- kernel 2..18-10smp, completely unmodified CVS 
> checkout of the current (not release 1.0) Insight source tree.
> 
> I can provide files to anyone who wants to paw through them.  CMake seems to 
> act as though those examples don't need fltk fiiles, and I don't understand 
> yet how to tell CMake it does, or what I'd have to edit and change to make it 
> work.
> 
> I assume that the nightly dashboard build try to build everything, and any 
> problems like this should be caught.  That would mean I'm having a cockpit 
> error here, but I don't know what it is.
> 
> Thanks in advance for your help!
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