libgcj soname change needed

[Bryce McKinlay]

Matthias Klose wrote:
> current trunk needs the soname bump.
>   

Changing the soname would mean that code compiled against GCC 4.1 will 
no longer run against a trunk runtime. For example, it is possible to 
take an Eclipse binary compiled with the BC-ABI against libgcj 4.1and 
run it against the trunk libgcj. If the soname were to change, this 
would no longer work.

On the other hand, not updating it means that C++ ABI  code can't select 
the correct version of the runtime when multiple ones are installed, 
which could be a problem for some. Perhaps some linker tricks can be 
used to solve this?

Bryce