[Proposed binutils PATCH] Re: Diagnosing an intricate C++ problem

[Jason Merrill]

>>>>> Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at> writes:

 > On 2 Sep 2000, Jason Merrill wrote:
 >>> for which a simple `g++ x.cc` generates the following warnings:
 >> Well, of course it does.  You're compiling it with different flags than
 >> were used to build libstdc++, so the generated code is different.  That's
 >> why this feature is pretty useless for code.

 > Yeah, but how can we diagnose the problem I raised in
 >   http://gcc.gnu.org/ml/gcc/2000-07/msg00769.html
 > ?

I suppose we could do a checksum of the tree structure and store that
somewhere.  There's no easy answer.

Jason