GCC 3.4.x => 4.0 compatiblity

[Andrew Muraco]

my platform is x86
the distribution i use is Gentoo - so im familiar with compiling a whole 
distro.
and i am aware of the 2 months until the release - but i have been 
considering using my spare computer to test out gcc-4.0 (maybe i might 
even try gcc-4.1 if i get daring - and compile the system from scratch 
(this is a computer strictly for messing around and messing up so i am 
fine if something breaks)

But really i want to wait until the offical release and jump on it- im 
just not sure of the best way to bring my whole system to take advantage 
(with out that many problems) when the time eventually comes

Thanks,

Andrew

James E Wilson wrote:

> Andrew Muraco wrote:
>
>> After the compiler is installed im going to recompile glibc using gcc
>> 4.0 and recompile other major parts of the system
>
>
> This is probably more trouble than it is worth.  gcc-4 won't be fully 
> ABI compatible with gcc-3.4, and you are likely to find bugs in gcc 
> and various other packages, as gcc-4 hasn't been used to build a full 
> distro yet.  How much trouble you see will depend on your target, 
> which you didn't specify.
>
> Unless you are in the business of making distros, or want to learn how 
> to build a distro, it is best to stick with the compiler that your 
> existing distro supports.
>
> Also, it is probably a little early to worry about this, as the gcc-4 
> release is probably still 2 months away.