Re: link_all_deplibs

[Christoph Wellner]

On Fri, 14 Jan 2005 16:26:22 +0100, Ralf Wildenhues  
<address@hidden> wrote:

> Hi Christoph,
>
> * Christoph Wellner wrote on Fri, Jan 14, 2005 at 04:07:21PM CET:
> > i have trouble starting my application since I get undefined references.
> > As source I determined the variable "link_all_deplibs_CXX" wich is
> > explicitly set to 'no' in libtool.m4.
> > I'm running libtool-1.5.6 under debian Sarge and the problem is, that  
> > the
> > libtool.m4-file is different from the one that comes with the
> > libtool-distribution from the homepage.
>
> Yes.  Debian is AFAIK the only distribution that ever sets
> link_all_deplibs to no on linux.
>
> > My question is, can I set the value of "link_all_deplibs_CXX" by hand,  
> > eg
> > as option in the commandline?
>
> You can either change `libtool.m4' and/or whereever the package you are
> talking about stores its m4 macros then rebuild the package or you can
> change generated `libtool' -- look for all instances of
>
> link_all_deplibs=yes
>
> and set them to `unknown' or `no' (one at the beginning and several ones
> at the end, one for each language -- search for
>  ### BEGIN LIBTOOL TAG CONFIG: CXX
> ).
>
> You could also tell us what specific problem you have encountered, so we
> can warn against it or help you (the Debian maintainer usually reads
> this list as well :)  or maybe just fix the package you are trying to
> build.
>
> Regards,
> Ralf

Hi Ralf,

well, I think the problem is on my side. The problem is the following:
I habe libraries libA and libB and my application app. app uses functions  
from libA and libB, and libA uses functions from libB. So I linked libA  
against libB and my app against libA. This worked fine, but now I get  
undefined references, unless I also link libB against app.

I dont't know, if this is intended, since I didn't care much about linking  
in the past. I also wonder about the output of ldd. I one line, it says  
"libB => not found" and serveral lines below, it finds libB in the correct  
directory. This is, well, a little confusing ;)

greetz
Christoph


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