Re: Libtool 1.5.8 problems on OSX: ${wl} evaluation [#9382]

[Donald Anderson]

Peter, Gary and other libtoolers,

I wasn't sure George got back to you on this.
With some more testing, apparently MACOSX_DEPLOYMENT_TARGET set to 10.3
*does* work for us.  I suspect something didn't get rebuilt the first 
time around.

I think we all agree that there is a problem in echoing '${wl}'.
That red herring got us poking at the wrong issue, but doesn't
seem to be a critical problem.

Thanks for your quick responses and suggestions!
We look forward to trying out libtool 2.0 when it appears.

- Don

On Oct 13, 2004, at 10:13 AM, Peter O'Gorman wrote:

> George Feinberg wrote:
> > Note that ALL 3 of these libraries load all of the core DB .o files, 
> > and therefore
> > duplicate those symbols.
>
> This is the problem. Tcl, for some reason, uses NSAddImage to load 
> objects at runtime on darwin/Mac OS X. NSAddImage, and NSAddLibrary, 
> are unable to load objects privately, so for flat_namespace images you 
> will get conflicts and the library will fail to load. I have no idea 
> why the Tcl folks went with loading objects of type MH_DYLIB, not 
> MH_BUNDLE, it makes no sense. It also means that Tcl can not work on 
> the original Mac OS X 10.0.x, that api was not available then. Note 
> that the file which does this is (c) Apple Computer and atributed to 
> Wilfredo Sanchez, but Wilfredo left Apple before the NSAddImage api 
> became available, so it isn't his fault :)
>
> If you rebuild all your libraries with MACOSX_DEPLOYMENT_TARGET set to 
> 10.3, it should cause you to get two level namespace libraries, which 
> may be capable of being simultaneously loaded by Tcl.
>
> Alternatively, you could try and ensure that libdb_cxx is not loaded 
> by Tcl at the same time as libdb_tcl or libdb.
>
> I don't really have time until the weekend, maybe next week, but if 
> you send me some info on how to replicate this issue, I'll try and 
> give you some more alternatives.
>
> Peter
> --
> Peter O'Gorman - http://www.pogma.com

--

Don Anderson
Java, Berkeley DB, systems consultant

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