gcc versions and freebsd-4 compatibility

[Yury Tarasievich]

Re changing the default compiler, throwing out gcc-2.95.4 etc. I hope this 
doesn't mean loosing the existing binary packages level compatibility between 
freebsd-4 and dfbsd?

Of course, I'm not talking kernel-structures-using applications here. However, 
currently I'm successfully using "dfbsd" xorg-6.8.1 packages on freebsd-4 
(and recently I was using "freebsd" xfree packages on dfbsd). Conversely, on  
freebsd-5.3, even simple freebsd-4 user-land apps using something from libc 
(was it stpcpy?), already ceased working. You tell what's looking better.

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