[Xorp-users] BUG: 1.7 build system does not have dependencies against SConscript files

[J.T. Conklin]

"XORP at sipxx.com" <karl at sipxx.com> writes:
> The new build system does not implement any dependency checking on 
> SConscript files.
>
> For example, when applying a patch to SConscript files for fixing the 
> library path problem addressed in another thread, the system should 
> detect that SConscript files have changed and should relink the 
> executables, or whatever is necessary to build a subsystem correctly. 
> Ideally this should only do the absolutely minimum work, like just 
> relinking the executables, but may involve recompilations, since some 
> compiler flags may have been changed.

This is supposed to "just work".  Scons builds a dependency graph from
the declarations in the SConscript files, and then checks to see if
each node in the DAG is up to date.  If a new file or library is added,
the DAG will be out of date, and the executable should be rebuilt.

If this is not happening, a fully worked example needs to be filed as a
bug.  Include the version of SCons and Python as well.

   --jtc

-- 
J.T. Conklin