Bug#288739: gcc optimization bug

[Marco Fabbricatore]

Well this means that all debian 3.0 packages which have been compiled w/ 
gcc 2.95 might contain serious integer overflow problems regardless one 
thinks he does secure programming.

marco
Falk Hueffner wrote:
Marco Fabbricatore <[EMAIL PROTECTED]>, [EMAIL PROTECTED] schrieb am 05.01.05 
14:08:32:

Package: gcc
Version: 2.95.4 20011002
following function compiled w/ gcc -O
int foo(unsigned int a)
{
   if(a * sizeof(int) / sizeof(int) != a)
      return -1;
   return 0;
}
gcc optimizes the arithmetic overflow check away!

Indeed. This is fixed in the 3.x series. I suggest upgrading, since it seems 
unlikely
that somebody will find and backport the fix...
Falk