Hi, It still does not link, even when I tried the two commands you posted. I'm at a loss here, I just don't understand the nature of the error. Regards, Dinesh. Message: 3 Date: Wed, 8 Jun 2005 18:08:32 -0400 From: Caleb Epstein <caleb.epstein@gmail.com> Subject: Re: [Boost-users] Error Linking A Simple Application using Boost.Any To: boost-users@lists.boost.org Message-ID: <989aceac050608150830caa3e7@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On 6/7/05, Dinesh Pillay <dpillay@gmail.com> wrote:

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g++ -IC:\Boost\include\boost-1_32 -pedantic -s -O3 -fno-exceptions -c boost_trial.cpp -o boost_trial.o

But when I try to link the file using: g++ -IC:\Boost\include\boost-1_32 boost_trial.cpp -o boost_trial.exe

I get the following errors:

/mingw/lib/libstdc++.a(eh_personality.o)(.data$_ZTISt9exception[typeinfo for std::exception]+0x0): multiple definition of `typeinfo for std::exception' C:\DOCUME~1\dpilla\LOCALS~1\Temp/ccoBaaaa.o(.rdata$_ZTISt9exception[typeinfo for std::exception]+0x0):boost_trial.cpp: first defined here /mingw/lib/libstdc++.a(eh_personality.o)(.text$_ZTSSt9exception[typeinfo name for std::exception]+0x0): multiple definition of `typeinfo name for std::exception' C:\DOCUME~1\dpilla\LOCALS~1\Temp/ccoBaaaa.o(.rdata$_ZTSSt9exception[typeinfo name for std::exception]+0x0):boost_trial.cpp: first defined here /mingw/lib/libstdc++.a(functexcept.o)(.data$_ZTISt8bad_cast[typeinfo for std::bad_cast]+0x0): multiple definition of `typeinfo for std::bad_cast' C:\DOCUME~1\dpilla\LOCALS~1\Temp/ccoBaaaa.o(.rdata$_ZTISt8bad_cast[typeinfo for std::bad_cast]+0x0):boost_trial.cpp: first defined here /mingw/lib/libstdc++.a(functexcept.o)(.text$_ZTSSt8bad_cast[typeinfo name for std::bad_cast]+0x0): multiple definition of `typeinfo name for std::bad_cast' C:\DOCUME~1\dpilla\LOCALS~1\Temp/ccoBaaaa.o(.rdata$_ZTSSt8bad_cast[typeinfo name for std::bad_cast]+0x0):boost_trial.cpp: first defined here collect2: ld returned 1 exit status

I have no idea why this is happening! What am I doing wrong? Somebody please tell me the right way to link the file.

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I suspect the problem is you have disabled exceptions (-fno-exceptions). Are you doing this for any particular reason? Also, why are you stripping your object files (-s in the compile line)? Hopefully gcc is ignoring this, but this may also be the cause of your grief.

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g++ -Ic:/boost/include/boost-1_32 -O3 -c boost_trial.cpp g++ -s -o boost_trial.exe boost_trial.o

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-- Caleb Epstein caleb dot epstein at gmail dot com