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Re: Libstdc++ versioning issues
On Sun, 19 Jun 2005 15:06:58 +0200, Paolo Carlini wrote:
> The issue that Benjamin just fixed is very simple to explain (much less
> to fix ;) : some recently added exported symbols had the default v6
> version, that is, 3.4.0, instead of 3.4.5.
Ah I see :)
Are the new symbols new APIs, or will pre-existing code compiled with GCC
3.4.5 depend on these symbols when they would not have done when compiled
with GCC 3.4.0?
Also, is anybody looking at bug #21405? This bug makes the symbol
versioning not so useful - to successfully distribute C++ apps on Linux we
have had to resort to a binary diffing/cross-build system so the user gets
a binary built with the right ABI installed. This problem affects games a
lot, because they tend to use SDL and libSDL dlopens sound drivers
according to the environment. When SDL dlopens the aRTS driver, you get
both libstdc++.so.5 and libstdc++.so.6 versions mixed into the same binary
and the symbol versioning is not enough to stop them conflicting.
thanks -mike