Lack of libstdc++ compatibility

[Gerald Pfeifer]

On Thu, 18 Aug 2011, Jonathan Wakely wrote:
> Personally I *like* it when a new release identifies portability 
> problems such as missing includes.  I consider it an advantage,
> and an improvement in the compiler.

That's a valid approach from a technology perspective.  From a 
customer/user perspective it's just painful.

These incompatibilities have been costing me days, if not weeks, when 
upgrading the versions of GCC in the FreeBSD Ports Collection, for example 
-- for no benefit to anyone since it all was about older version of
ports or old pieces of software, abandoned upstream.

(And it's mostly on the C++ front; C and Fortran appear a lot more
stable.)

Gerald