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Re: Symbol versioning problem? Different versions of same symbol being called.


On Thu, Jan 24, 2002 at 06:44:20PM +0100, Carlo Wood wrote:
> On Thu, Jan 24, 2002 at 09:36:49AM -0800, H . J . Lu wrote:
> > Is your shared library built with
> > 
> > # gcc/g++ -shared ....
> 
> Yes.  I use libtool, which calls the following
> 
> Compiling an object file:
> 
> g++-3.0.3 -DHAVE_CONFIG_H -I./include -I./include -DCWDEBUG -ggdb3
>   -pipe -pthread -Wall -Woverloaded-virtual -Wundef -Wpointer-arith
>   -Wwrite-strings -Werror -Winline -c elf32.cc -MT elf32.lo -MD
>   -MP -MF .deps/elf32.TPlo  -fPIC -DPIC -o elf32.o
> mv -f elf32.o elf32.lo
> 
> Final linking:
> 
> gcc-3.0.3 -shared  threading.lo elf32.lo bfd.lo debug.lo debugmalloc.lo
>   demangle.lo demangle3.lo strerrno.lo type_info.lo
>   -Wl,--whole-archive utils/.libs/libutils.al -Wl,--no-whole-archive
>   utils/.libs/libutils.al -ldl   -Wl,-soname -Wl,libcwd.so.0
>   -o .libs/libcwd.so.0.99.16
> 
> 
> I suppose using the -shared in the last command suffices?
> Nevertheless, it calls the wrong version.

I don't like libtool. Any particular version of libtool will have
different bugs. Anyway, please find out if -lc is used for building
shared library. When -lc is used, all symbols defined in libc should
have a version name. Please find out why that symbol doesn't have a
version name.


H.J.


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