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Re: transitive shared library dependencies and installation

From: Roumen Petrov
Subject: Re: transitive shared library dependencies and installation
Date: Sat, 4 Jan 2020 20:18:14 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 SeaMonkey/2.49.5


address@hidden wrote:
Roumen Petrov <address@hidden> writes:

address@hidden wrote:

I'm experimenting with the attached skeleton project on a Debian buster
Debian is key word.

system (autoconf 2.69-11, automake 1:1.16.1-4 and libtool 2.4.6-9):
Libtool is patched, not FSF.
/usr/bin/ld: cannot find -lb
collect2: error: ld returned 1 exit status
libtool:   error: error: relink 'a/' with the above command before 
installing it
make[1]: *** [Makefile:446: install-libLTLIBRARIES] Error 1
make[1]: Leaving directory '/home/wferi/ha/pacemaker/translib'
make: *** [Makefile:798: install-am] Error 2
and use it from liba, linking the final binary fails:

$ make
/bin/bash ./libtool  --tag=CC   --mode=link gcc  -g -O2 -avoid-version  -o 
translib translib.o a/
libtool: link: gcc -g -O2 -o .libs/translib translib.o  a/.libs/ 
-Wl,-rpath -Wl,/tmp/translib/lib
/usr/bin/ld: a/.libs/ undefined reference to `b2'

As I understand it, the -rpath linker option on the above command makes
a/.libs/ use the already installed (old) version of libb, which
lacks the b2 symbol.  What's the solution here?  Why isn't that -rpath
option "delayed" until the relinking phase?
Not reproducible with FSF release.
Could you please share your link command?  Does you system use the new
dynamic tags (DT_RUNPATH instead of DT_RPATH)?
This does not make sense. With and without  new dtags result will be the same.

It is long history It starts with 1* (1.5) libtool . Libtool 1.5 has some issues with multiple dependent libraries (more then two). From debian was proposed a patch related to library dependencies. Unfortunately patch break existing regression test. From debian never was proposed version that pass regression test.

Libtool 2.0 fixes his issues related to multiple libraries. On the same Debian did not stop to contribute patch that breaks libtool.

As result when I decide to build something from source always to updated sources to FSF version.

So the right question is did reporter test with FSF version?

Roumen Petrov

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