Re: [Ring] how to compile/link to libring.a (statically)

[Guillaume Roguez]

Hi Stepan,

libring.a doesn't contains all "contrib" symbols. You have to link them also.

// Guillaume

----- Le 29 Juin 17, à 17:03, Stepan Salenikovich address@hidden a écrit :

> Hi,
> I'm trying to help Houmin with his GSoC project and I'm a bit stumped
> on this myself.
> 
> We want to compile a simple client which links to the static
> libring.a, but are having issues resolving all the undefined
> references.
> 
> We have a main.cpp:
> 
>> #include <dring.h>
>> int main(int argc, char *argv [])
>> {
>>         DRing::version();
>>         DRing::init(static_cast<DRing::InitFlag>(0));
>> }
> 
> 
> And heres a Makefile (obviously adapt it to where you've installed the 
> daemon):
> 
>> CC = g++
>> CXXFLAGS :=     -I/home/stepan/ring-project/install/daemon/include/dring \
>>                 -L/home/stepan/ring-project/install/daemon/lib
>> LIBS := -lring
>> all: ring-iot
>> ring-iot: main.cpp
>>         $(CC) -o ring-iot main.cpp $(CXXFLAGS) $(LIBS)
>> clean:
>>         rm -f *~ *.o ring-iot
> 
> Running 'make' results in many undefined references. Running 'nm' on
> libring.a shows that pretty much all of these are undefined there.
> However, some or all of these objects do exist in the dring binary, or
> else they are in .so linked to by the dring binary. Does this mean
> that in our Makefile we must explicitly link to all the dependencies
> (static or dynamic)?
> 
> Is there a simpler solution?
> 
> Thanks,
> -stepan