Re: Binary compatibility of gcc 3.4.4 and gcc 4.2.0

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On Mon, 16 Mar 2009, Andrew Haley 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.

Are you sure about that? They are both libstdc++.so.6, so the more recent version is supposed to be backwards compatible with the older one. Or were you talking about something else?

To the OP: not saying what error you get does not help...

--
Marc Glisse

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