My extra/SConscript is revision 1.1.2.3, from 4th aug.
that's the most recent ...
the nm output is below.
nm -D expr.pd_linux
<snip> > 00002bc0 T ex_mkvector
this looks absolutely fine ... are you sure that you are trying to load this binary and no other (older) one? pd -verbose should give you a hint ...
cheers ... tim