Am 07.01.2006 um 20:25 schrieb Luís Oliveira:
On 2006-jan-07, at 16:52, Frank Goenninger - PRION Consulting wrote:
We don't really search for the library ourselves. dlopen() takes
care of that for us. It was just an example.
Ah. So, if you want to make dlopen() handle all searching, then
you'd have to extend the respective environment variable with user-
supplied search paths. Which brings us to ? Yes, platform-
dependent putenv() calls or whatever the Lisp implementation's way
is to set an env var. Or do I misunderstand still somethimng here?
Hmm, I'm not sure what you mean. What happens is that, if dlopen()
can't find the library, we try finding it in one of the directories
in the cffi:*foreign-library-directories* list.
I assumed you would do that. Now you've confirmed that. Thanks.
dlopen() of course does not always return a real error if it couldn't
find the lib (in some cases I had a return value of NULL which in
some cases meant that there was an error and in some cases not) . I
had cases (on HP-UX, where you use shl_load() because there's no
dlopen() in this OS) where I had to examine errno (and on other OSes,
where available, with dlerror() ...) to find out what really happened.
Thanks again - having talked/written that much now I figure I should
start supporting you and begin coding that stuff... Will look for the
source code.
Frank
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