The packages isn't compiled with the -fPIC option. And therefore can't be prelinked. Here is a patch to compile netpbm with -fPIC. On my machine it compiles perfectly and prelinks.
Created attachment 7166 [details, diff] A patch to compile netpbm with -fPIC for prelinking
added in cvs thx.
*** Bug 13703 has been marked as a duplicate of this bug. ***