[C++-sig] boost.python error

Ralf W. Grosse-Kunstleve rwgk at yahoo.com
Sun Nov 6 16:50:49 CET 2005

--- Stefan Seefeld <seefeld at sympatico.ca> wrote:

> Ralf W. Grosse-Kunstleve wrote:
> > Note that you will always have to worry about LD_LIBRARY_PATH; this is how
> you
> > tell dlopen (used by Python) where to find your custom shared libraries.
> just a little nit-picking:
> The library being searched for here (libboost_python.so) isn't dlopened, only
> the depending python module is. Python has its own way to figure out from
> where to load its modules, and that doesn't involve LD_LIBRARY_PATH.
> However, if those modules depend on other DSOs, the dynamic loader (ld.so
> on my system) kicks in, and *then* you may need LD_LIBRARY_PATH to add
> non-default places to look in.

Thanks for the clarification; I agree.
I noticed that the Linux man page for dlopen mentions LD_LIBRARY_PATH right at
the beginning. Therefore I was thinking the dynamic loader uses dlopen
eventually, just like Python does. Or is there another mechanism?


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