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Re: Inter-library dependencies
From: |
Carlo Wood |
Subject: |
Re: Inter-library dependencies |
Date: |
Mon, 23 Oct 2000 00:07:37 +0200 |
User-agent: |
Mutt/1.1i |
On Sun, Oct 22, 2000 at 10:51:12AM -0600, Wesley W. Terpstra wrote:
> All of what you have just described should already work under the newest
> libtool.
I'll double check that it doesn't work with 1.3.5, then upgrade
libtool to the latest cvs version and check again.
First for 1.3.5 thus:
> Try getting the version out of cvs and seeing if that solves your
> problems. Also check that you are compiling with commands roughly like:
>
> libtool c++ -Wall -O2 -g -c cwd.c -o cwd.lo
/bin/sh ./libtool --mode=compile g++ -DHAVE_CONFIG_H -I. -I- -I./include
-I../libcw/src/libcwd/include -DDEBUG -g -fno-exceptions -pipe -Wall
-Woverloaded-virtual -Wundef -Wpointer-arith -Winline -Wwrite-strings -Werror
-c ../libcw/src/libcwd/type_info.cc
which executes:
g++ -DHAVE_CONFIG_H -I. -I- -I./include -I../libcw/src/libcwd/include -DDEBUG
-g -fno-exceptions -pipe -Wall -Woverloaded-virtual -Wundef -Wpointer-arith
-Winline -Wwrite-strings -Werror -Wp,-MD,.deps/type_info.pp -c
../libcw/src/libcwd/type_info.cc -fPIC -DPIC -o type_info.lo
That seems correct.
> libtool c++ -Wall -O2 -g -rpath /usr/lib -o libcwd.la cwd.lo -ldl -lbfd
/bin/sh ./libtool --mode=link g++ -g -fno-exceptions -pipe -Wall
-Woverloaded-virtual -Wundef -Wpointer-arith -Winline -Wwrite-strings -Werror
-o libcwd.la -rpath /usr/local/lib -version-info 99:4:99 bfd.lo debug.lo
debugdebugcheckpoint.lo debugmalloc.lo demangle.lo printcw.lo strerrno.lo
type_info.lo utils/libutils.la -lbfd -liberty -ldl
which executes:
gcc -shared bfd.lo debug.lo debugdebugcheckpoint.lo debugmalloc.lo demangle.lo
printcw.lo strerrno.lo type_info.lo -Wl,--whole-archive utils/.libs/libutils.al
-Wl,--no-whole-archive -lbfd -liberty -ldl -lc -Wl,-soname -Wl,libcwd.so.0 -o
.libs/libcwd.so.0.99.4
I am afraid that -liberty got linked in:
~/c++/libcw-objdir/.libs>nm libcwd.so.0.99.4 | grep xmalloc
00036a30 T xmalloc
00036a20 T xmalloc_set_program_name
while libiberty.a is a static library, not compiled with -fPIC.
This is bad. For the rest it looks conceptually like your line.
> libtool c++ -Wall -O2 -g -c cw.c -o cw.lo
/bin/sh ./libtool --mode=compile g++ -I. -I- -I./include
-I../../../libcw/src/libcw/include -DDEBUG -g -fno-exceptions -pipe -Wall
-Woverloaded-virtual -Wundef -Wpointer-arith -Winline -Wwrite-strings -Werror
-c version.cc
which executes:
g++ -I. -I- -I./include -I../../../libcw/src/libcw/include -DDEBUG -g
-fno-exceptions -pipe -Wall -Woverloaded-virtual -Wundef -Wpointer-arith
-Winline -Wwrite-strings -Werror -Wp,-MD,.deps/version.pp -c version.cc -fPIC
-DPIC -o version.lo
This is equivalent with the above
> libtool c++ -Wall -O2 -g -rpath /usr/lib -o libcw.la cw.lo libcwd.la
/bin/sh ./libtool --mode=link g++ -DDEBUG -g -fno-exceptions -pipe -Wall
-Woverloaded-virtual -Wundef -Wpointer-arith -Winline -Wwrite-strings -Werror
-o libcw.la -rpath /usr/local/lib -version-info 0:0:0 version.lo
crosslink/libcrosslink.la io/libio.la kernel/libkernel.la llists/libllists.la
net/libnet.la ../libcwd/libcwd.la
which executes:
libtool: link: error: cannot link shared libraries into libtool libraries
Duh. Well, you said that it was supported in 1.4, not 1.3.5.
> c++ -Wall -O2 -g -c mytest.c -o mytest.o
> libtool c++ -Wall -O2 -g -o mytest mytest.o libcwd.la
Surely you mean: libtool c++ -Wall -O2 -g -o mytest mytest.o libcw.la
Note the libcwd.la -> libcw.la
> PS. I've moved my reply from 'libtool-patch' to 'libtool' b/c there is no
> patch under discussion.
Ok.
> Wesley W. Terpstra <address@hidden>
> Javien Canada Inc. - Linux Developer
Thanks, I'll follow up with the results under 1.4-to-be tomorrow.
--
Carlo Wood <address@hidden> -=- Jesus Loves you -=-
- Re: Inter-library dependencies, Wesley W. Terpstra, 2000/10/22
- Re: Inter-library dependencies,
Carlo Wood <=
- Re: Inter-library dependencies, Wesley W. Terpstra, 2000/10/22
- Re: Inter-library dependencies, Carlo Wood, 2000/10/23
- Re: Inter-library dependencies, Wesley W. Terpstra, 2000/10/23
- Re: Inter-library dependencies, Carlo Wood, 2000/10/24
- Re: Inter-library dependencies, Alexandre Oliva, 2000/10/24
- Re: Inter-library dependencies, Carlo Wood, 2000/10/24