[PD] Can't create boids objects

[Jack]

Hello,

After a 'make' I get boids2d.pd_linux and boids3d.pd_linux but can't
create objects under Pd.
When I try to create an object, i get in pd console :

./boids2d.pd_linux: ./boids2d.pd_linux: wrong ELF class: ELFCLASS32
boids2d: can't load library
./boids3d.pd_linux: ./boids3d.pd_linux: wrong ELF class: ELFCLASS32
boids3d: can't load library

What can I do/change to use these objects under Pd ?

Here my configuration :
Pd 0.45.0test 2
Last boids sources from
svn://svn.code.sf.net/p/pure-data/svn/trunk/externals/boids

Thanx for help.
++

Jack