Christoph Hormann wrote:

> marabou wrote:
>> 
>> you may know upgrading gcc is not as easy as it sounds (i did not
>> find any manual for using two compiler versions or library versions
>> on system at the same time for my Deb).
> 
> Building a new gcc is extremely easy, it of course takes some time
> but i never had any problems with it (and the source package of gcc
> comes with
> step by step instructions even my mom could follow).  Just install
> into /usr/local (which is default) and you will have no problem
> having two gcc versions on the same system.
> 
but doesn't it kill my old gcc-libraries? 
the headers are stored in different directories but there is only one
lib-dir with no soft-links.
maybe the connection is not clean between gcc, libc and libstdc++ to
me...

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