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Re: backward compatibility of gcc 3.3<- 4.x ?


From: Paul Pluzhnikov
Subject: Re: backward compatibility of gcc 3.3<- 4.x ?
Date: Tue, 18 Jul 2006 15:56:48 -0700
User-agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Jumbo Shrimp, linux)

Amit Bhatia<address@hidden> writes:

>  I am using os X 10.3.9 with xcode 1.5 and gcc 3.3.

I am not familiar with that environment ...

> I believe this version of gcc/g++ is pretty old now 

Correct: the latest version of 3.x series is 3.4.6

> and am thinking of updating to gcc 4.0

Current released version is 4.1.1

> Is it expected that all the compiled libraries will continue to
> function and link smoothly if I make this upgrade?

If these packages expose plain-C API, they are likely to continue
to function. OTOH, if they expose C++ API, they are very unlikely
to work at all -- there have been several ABI changes since gcc 3.3

Cheers,
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