On Thu, 11 Jul 2013 10:15:53 +0200
John vd Waeter <j.v.d.waeter@...> wrote:

[...]

> But still "cannot load error" while starting the program.
> Could it be it finds the 64 bit libfbclient.so first and throws the
> "can not load default Firebird clients" error?

A quick followup on debugging the dynamic loader job -- an invocation
like this one

$ LD_DEBUG=libs,files /usr/bin/gcc

would provide you with details on what libraries the linker tried to
load, why, and from where.