problem in linking log4cxx library for ObjectHandler

[enrico.michelotti]

Hello all,
I have downloaded the ObjectHandler 0.1.1
and the log4cxx library.
I have compiled the static project for log4cxx
and everything looked fine.
But when I included in my project the file <oh/logger.hpp>
I got 35 linking errors.
In effect it was the first time I implicity included <log4cxxlogger.hpp>.

Below an example of the errors I got:

xlProfiloLib error LNK2001: unresolved external symbol "public: virtual class log4cxx::helpers::Class const & __thiscall log4cxx::helpers::Object::getClass(void)const " (?getClass@Object@helpers@log4cxx@@UBEABVClass@23@XZ)

Maybe I made a mistake in setting the log4cxx project.
In quanlib site there is a page with some notes to correctly install log4cxx.
But I was not able to reproduce this note:
"you need to manually set environment variable LOG4CXX_DIR to the top level log4cxx directory e.g. C:\log4cxx-0.9.7"

Is this the problem?
Can anybody help me please?

thanks in advance.
enrico






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[eric ehlers]

Hi Enrico

You need to add $(OBJECT_HANDLER_DIR)\lib to the list of paths for the
linker and add log4cxxs.lib and ws2_32.lib to the libs to be linked.

I've updated the website to clarify the instructions for installation and usage:

http://quantlib.org/objecthandler/installation.html#usage

If that doesn't fix the problem please let me know.

Regards,
Eric

On 8/4/05, enrico.michelotti <[hidden email]> wrote:

> Hello all,
> I have downloaded the ObjectHandler 0.1.1
> and the log4cxx library.
> I have compiled the static project for log4cxx
> and everything looked fine.
> But when I included in my project the file <oh/logger.hpp>
> I got 35 linking errors.
> In effect it was the first time I implicity included <log4cxxlogger.hpp>.
>
> Below an example of the errors I got:
>
> xlProfiloLib error LNK2001: unresolved external symbol "public: virtual class log4cxx::helpers::Class const & __thiscall log4cxx::helpers::Object::getClass(void)const " (?getClass@Object@helpers@log4cxx@@UBEABVClass@23@XZ)
>
> Maybe I made a mistake in setting the log4cxx project.
> In quanlib site there is a page with some notes to correctly install log4cxx.
> But I was not able to reproduce this note:
> "you need to manually set environment variable LOG4CXX_DIR to the top level log4cxx directory e.g. C:\log4cxx-0.9.7"
>
> Is this the problem?
> Can anybody help me please?
>
> thanks in advance.
> enrico
>
>
>
>
>
>
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>
>
>
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