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Re: Binary compatibility of gcc 3.4.4 and gcc 4.2.0

From: Andrew Haley <aph at redhat dot com>
To: jvl072170 at cse dot iitd dot ernet dot in
Cc: gcc-help at gcc dot gnu dot org
Date: Mon, 16 Mar 2009 10:00:22 +0000
Subject: Re: Binary compatibility of gcc 3.4.4 and gcc 4.2.0
References: <25216.57.73.25.165.1237195371.squirrel@www.cse.iitd.ernet.in>

jvl072170@cse.iitd.ernet.in wrote:

> I want to build a program in GNU g++ 4.2.0 linking it with a static
> librrayd object built using gcc 3.4.4. Does the libxyz.a compiled using
> gcc 3.4.4 link properly with a program being compiled using gcc 4.2.0

Usually yes, but not with C++.

> I checked both the compilers use ABI version 2.
> Version 4.2.o uses libstdc++.so.6.0.8 while 3.4.4. uses libstdc++.so.6.0.3.
> What is the diffrence among these two versions of libstdc++??

These libraries are not binary compatible, sorry.  You'll have to
recompile.

Andrew.

Follow-Ups:
- Re: Binary compatibility of gcc 3.4.4 and gcc 4.2.0
  - From: Marc Glisse

References:
- Binary compatibility of gcc 3.4.4 and gcc 4.2.0
  - From: jvl072170

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