[Plplot-devel] Re: aqt.rc error on Mac OS X

[Koen v. d. D. <kvd...@ea...>]

On Feb 8, 2006, at 2:04 PM, plplot-devel- 
re...@li... wrote:

> That's close.  get-drv-info is a tiny test app that attempts to  
> dynamically
> load the module in the same way that plplot would.  It always fails  
> if there
> is something wrong with the linking for the module in question.
>
> Koen, can you get the aqt device driver to work on your own system?  
> It is
> always better to work directly with the problem rather than at  
> second hand.
> If the aqt device driver works for you, but not for your user, then  
> probably
> you have some prerequisite library installed that he does not have  
> (or as
> implied by Werner's post, he might have the prerequisite library  
> installed
> in a non-standard directory and told ./configure about that  
> directory, but
> failed to set the LD_LIBRARY_PATH environment variable [or the  
> equivalent on
> Mac OS X systems] to inform the linking system that the non-standard
> directory contains libraries to be linked).
>
> I know there is some equivalent to ldd on Mac OS X, but we will  
> need Per or
> Hazen to remind us what it is.  Then look at the contents of the  
> aqt.la file
> (which is just an ascii file) to find the dlname.  Then apply the  
> equivalent
> of ldd to that dlname in the drivers/.libs directory to find the  
> required
> library that is not present (or not accessible to the linker  
> because not in
> a standard place and LD_LIBRARY_PATH not set) on your user's system.
>
> Finally, Koen, please follow up by telling us how this is resolved.  
> If it
> turns out to be a completely missing library on your user's system,  
> then we
> should change our configuration of aqt to automatically drop that  
> device
> driver with appropriate message.

---------------

> Mac OS X uses "dyld" instead of "ld", where "otool -L" corresponds to
> "ldd".
> Obviously, otool can't be used on the .la file directly but this is
> what I get from the lib itself:


Thanks for the input, I have cc'd the user who reported the problem,  
so he can try the suggestions out on his system. On my system, plplot  
installs without a problem, so it seems difficult for me to try out  
things.

cheers,

- Koen.