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Re: Available for test: gcc-3.1.1-1, gcc2-2.95.3-6, and gcc-mingw-3_1-20020516-1
- From: Charles Wilson <cwilson at ece dot gatech dot edu>
- To: cygwin at cygwin dot com
- Date: Sun, 07 Jul 2002 22:46:14 -0400
- Subject: Re: Available for test: gcc-3.1.1-1, gcc2-2.95.3-6, and gcc-mingw-3_1-20020516-1
- References: <20020707032010.GA22463@redhat.com>
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
Attachment:
cxx.tar.bz2
Description: Binary data
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