Re: Linking problems in latest cvs deck.

Re: Linking problems in latest cvs deck.

[Benjamin Scherrey]

	I compiled everything with a 'make bootstrap' which builds the
libraries as well. That's very odd that the 2.95 would have worked,
then. I presume I was building 2.96 with the 2.95 compiler but then
shouldn't the bootstrapped 2.96 be building the standard libraries? Do I
need to build everything again *after* performing a 'make install' on
the 2.96?

	thanx & later,

		Ben Scherrey

David Edelsohn wrote:
> 
>         Did you compile the libraries with gcc-2.95 or CVS gcc-2.96?  The
> C++ name mangling has changed, so the compiler version used to build the
> library needs to match the compiler version building an application.
> 
> David

Re: Linking problems in latest cvs deck.

[Benjamin Kosnik]

I've been unable to reproduce this problem for over a week. Can you
please read this documentation about configuring and building?

http://sources.redhat.com/libstdc++/install.html


Our configure lines are a bit different, but I don't expect this is
the root cause of your problem.

from my config.status file:
/mnt/hd/bliss/src.gcc/configure
--with-gcc-version-trigger=/mnt/hd/bliss/src.gcc/gcc/version.c
--host=i686-pc-linux-gnu --verbose --prefix=/mnt/hd/bliss/H-x86-gcc-3
--enable-debug --enable-libstdcxx-v3 --enable-cshadow-headers
--enable-threads=posix --enable-languages=c,c++ --norecursion

If you can pass 'g++ -v' to your built compiler, you can see what
directories are being searched for the libstdc++ library. You might
want to use nm to look at this binary, and see if it has some of the
basic symbols, such as

std:cout

ie:

%nm -A libstdc++.a | grep cout
libstdc++.a:ios.o:         U _3std.cout
libstdc++.a:ios.o:         U _3std.wcout
libstdc++.a:stdstreams.o:00000140 B _3std.cout
libstdc++.a:stdstreams.o:00000460 B _3std.wcout

%nm -A --demangle libstdc++.a | grep cout
libstdc++.a:ios.o:         U std::cout
libstdc++.a:ios.o:         U std::wcout
libstdc++.a:stdstreams.o:00000140 B std::cout
libstdc++.a:stdstreams.o:00000460 B std::wcout


best,
benjamin

Linking problems in latest cvs deck.

[Benjamin Scherrey]

	I recently posted a message describing the inability to link anything
with the new libstdcxx-v3 in the latest cvs code. I just updated my code
and get the same results. My platform is i686 Linux 2.2.13. I'm
configured with '--enable-shared --enable-libstdcxx-v3
--enable-languages=cxx --enable-threads'. Am I the only one getting
these results? Interesting thing is that when I reinstall my gcc-2.95.2
code, its able to link to these libraries! What gives?

	thanx & later,

		Ben Scherrey