Re: [Cppcms-users] static linking error

[Shiv S. D. <shi...@gm...>]

undefined reference for symbol x clearly means the linker when invoked 
by compiler is not able to find the library which contains the symbol in 
this case libdl.so.

Normally on Linux systems cppcms goes in /usr/local/lib which is not 
there in LD_LIBRARY_PATH therefore compilation fails. I have found 
keeping that in LD_LIBRARY_PATH helpful.

Write a simple program which uses libdl.so and try compiling that see if 
that compiles. Since you said that -ldl flag has been used then it 
should say libdl.so is not found if it is not in appropriate path.

Respect,
Shiv

On Tuesday 30 July 2013 10:52 AM, Marcel Hellwig wrote:
> On 30.07.2013 02:12, ?? wrote:
>> find / -name 'libdl.*'
>> /usr/lib/x86_64-linux-gnu/libdl.a
>> /usr/lib/x86_64-linux-gnu/libdl.so
>> /lib/i386-linux-gnu/libdl.so.2
>> /lib/x86_64-linux-gnu/libdl.so.2
>>
>> But I need to static link it in my app. Do you mean LIBRARY_PATH
>> instead of LD_LIBRARY_PATH?
>>
> One is for runtime, the other one for compile time ;)
> http://stackoverflow.com/questions/4250624/ld-library-path-vs-library-path
>
> you also can check if ldconfig finds your libdl with
>> ldconfig -p | grep libdl
> if not, update your ldconf
> http://linux.101hacks.com/unix/ldconfig/
>
>
>
>
>
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