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Message-ID:	<3D28FCF6.40808@ece.gatech.edu>
Date:	Sun, 07 Jul 2002 22:46:14 -0400
From:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Available for test: gcc-3.1.1-1, gcc2-2.95.3-6, and gcc-mingw-3_1-20020516-1
References:	<20020707032010 DOT GA22463 AT redhat DOT com>

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I believe there are a few problems with gcc-2's c++ support -- I've 
attached an example that should demonstrate the problem.  (just unpack, 
cd, and make).

I'm getting lots of these sorts of errors:

/tmp/dllhelpers-0.4.0/cxx/usedll.cc:22: undefined reference to 
`endl(ostream &)'

I think the problem is that g++-2 is using g++(3.1.x)'s libstdc++.a 
library.  running the link command with -verbose, and I get:

...
attempt to open /usr/local/lib/libstdc++.a failed
attempt to open /usr/lib/libstdc++.dll.a failed
attempt to open /usr/lib/stdc++.dll.a failed
attempt to open /usr/lib/libstdc++.a succeeded
attempt to open .//libgcc.dll.a failed
attempt to open .//gcc.dll.a failed
...

But, didn't the C++ ABI change between gcc 2.95.x and 3.x ?  If so, does 
this mean that g++(3.x) can't use any C++ libraries that were compiled 
with g++(2.95.x)?

--Chuck

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