[CentOS] upgrade problem

Johnny Hughes mailing-lists at hughesjr.com
Mon Sep 19 20:46:40 UTC 2005

On Mon, 2005-09-19 at 11:53 -0700, Brian T. Brunner wrote:
> Currently we have RH7.3 with compiler gcc 2.96.x
> My mission, should I choose to accept it, involves moving 
> our embedded application to CentOS 4.1 with gcc 3.x
> Problem is that about 1/2 million lines of code that gcc 2.96 
> accepts gives fatal fits to the gcc 3.x compiler from CentOS 4.1
> I don't know how many fatal fits, as some disguise others etc. 
> "Can't find register to spill" is a common exit-barf from gcc 3.x.
> What I'd like to find is a comparison of gcc 2.96.x to 3.x from the 
> perspective of porting something from RH7.x to CentOS/RHEL 4.x
> What I did was make a fresh install of CentOS 4.1 and then load 
> the source code for the application and try to make.  What gcc 2.96
> compiler assumed about the underlying OS, and what gcc 3.x 
> assumes about the underlying OS, may be relatively skew.  Whether
> any of the application code assumes a 2.96 set of assumptions, where
> this set of assumptions is broken under 3.x, is unknown (and is the 
> kind of detail I'd like to see in the above-hinted-at porting guide).
> Links? Pointers? Tips? Clues?


There is a compat-libstdc++-296-2.96-132.7.2 ... so you might be able to
install that and run your applications.
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