Re: libtool 1.5.20, Solaris, linking in static libraries into the shared libraries

[Ralf Wildenhues]

Hi Yuri,

* Pooh wrote on Mon, Oct 31, 2005 at 11:31:24AM CET:
> 
> There is a following problem using CC v5.5 (v5.6 from Studio 10 does 
> show the same behaviour).
> I compile the sources (attached).
> test1 prints the message, while test2 doesn't.
> 
> That is because when we compile static library into the shared, using 
> the string:

(Side note: you mean what in Libtool lingo is called a `convenience
archive' rather than a static library;  the objects in the archive
contain position-independent code, PIC).

> libtool --mode=link CC -rpath /tmp -o libcon2.la dummy.lo libcon.la
> It becomes:
> CC -G -hlibcon2.so.0 -o .libs/libcon2.so.0.0.0   .libs/dummy.o -Qoption 
> ld -z -Qoption ld allextract,./.libs/libcon.a -Qoption ld -z -Qoption ld 
> defaultextract  -lCstd -lCrun -lc
> Which is considered wrong, the string must look like:
> CC -G -hlibcon2.so.0 -o .libs/libcon2.so.0.0.0   .libs/dummy.o -z 
> allextract ./.libs/libcon.a -z defaultextract  -lCstd -lCrun -lc
> As stated here: http://forum.sun.com/thread.jspa?threadID=27249&tstart=0

There is a partly related bugfix pending:
http://lists.gnu.org/archive/html/libtool-patches/2005-10/msg00111.html

Does
  CC -G -hlibcon2.so.0 -o .libs/libcon2.so.0.0.0  -z \
    allextract ./.libs/libcon.a -z defaultextract  -lCstd -lCrun -lc

work as well?  For which compiler/Solaris versions (print `CC -V')?
(I assume not, that's probably why you added the dummy.lo in the first
place, right?)

> PS. *giggle* I remember that some time ago this has been changed into 
> the current form because of a problem with CC5.3 on Solaris 8.

Yes, I know.  On CVS HEAD, I'll probably just set
  whole_archive_flag_spec=
so libtool will do the extracting and not use `allextract' at all,
because of above mentioned dummy-bug.

> On 5.3 it still doesn't work in any form. But on 5.5 and 5.6 it helps.
> So the idea "wl=-z" looks better and better:)

What I haven't understood yet is why we use `-Qoption' at all.  There
must be some combination where `-z' doesn't work as expected.  (Haven't
checked the archives for this yet..)

By the way, another question (since you seem to have access to a number
of compiler/system version):  Does the addition of `-lCstd -lCrun' cause
the C++ library symbols to be copied into the created library, or are
they linked dynamically?  If the former: for which compiler/system
versions?  You should read this thread for more info on this:
http://lists.gnu.org/archive/html/libtool/2005-08/msg00088.html
If you can provide additional useful information, the better, but be
sure to always specify which compiler/system versions you are speaking
about.

Thanks,
Ralf