Re: Failed to compile shared with error: undefined symbol: _ZTIN8CryptoPP21SimpleKeyingInterfaceE

On Tue, Aug 16, 2022 at 1:54 PM Cristian Rolando Reyes Chapoñan
<[email protected]> wrote:
>
> Hello everyone, a question when I try to use the package and compile it in shared form (.so)
> and I want to read it I get this:
> undefined symbol: _ZN8CryptoPP21SimpleKeyingInterface6SetKeyEPKhmRKNS_14NameValuePairsE
>
> in which I investigate and it says that I have to compile it in such a way that the symbols must be together with the compiled one, I have tried everything to compile it according to the forums and documentations with the command "-g" or "-O2" but I still cannot read the file
>
> My build commands are these:
>
> g++ -DNDEBUG -g -O2 -Wall -Wextra -o node.o node.cpp -l:libcryptopp.a
> g++ -shared -o node.so node.o
>
> I would be very grateful for your great help.
>
> Versions install:
> libcrypto++6
> libcrypto++-utils
> libcrypto++-dev
> libcrypto++-doc
> libcrypto++6-dbg
>
> My code:
> File name: node.cpp
>
> #include "cryptopp/modes.h"
> #include "cryptopp/aes.h"
> #include "cryptopp/filters.h"
> #include "cryptopp/hex.h"

I think you are missing <seckey.h>.

You might also be interested in https://cryptopp.com/wiki/Wrapper_DLL .

Jeff

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