Re: GCC_REQD, the NetBSD system compiler, etc

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

> I don't understand this part - which gcc version is later than what?
If you build a newer pkgsrc gcc (with base gcc or another pkgsrc gcc), 
dependencies built on the way are built with the old gcc, which may lead 
to libstd++-mixing hell. So you would need to build them with a different 
PREFIX, discard them when the new gcc has been built and start over.