Re: [classad-users] Linker Problems

[Ole Weidner <oweidner@xxxxxxxxxxx>]

Ha! You were right - there is indeed an '--enable-namespace' configure  
flag which defaults to *no* if you don't specify it. After recompiling  
the libs my little code snippet compiles and links just fine.
Thanks,
Ole



On Oct 22, 2009, at 5:10 PM, Matthew Farrellee wrote:

> I've no great suggestions. Just know that you can compile the  
> library with and without namespaces. It might be that you  
> accidentally compiled without them. Maybe you can try not using the  
> classad namespace in your program and it'll work.
> Best,
>
>
> matt
>
> Ole Weidner wrote:
> > Hey,
> >
> > I use these flags: -DWANT_NAMESPACES -DWANT_CLASSAD_NAMESPACE but  
> > if I
> > us -lclassad_ns as you're suggesting, I get the following error:
> >
> > ld: library not found for -lclassad_ns
> >
> > Which sounds right to me, since there's no libclassad_ns.dylib in the
> > installation directory. Are there any configure flags that control  
> > the
> > whole namespace stuff when I build libclassad?
> >
> > Thanks,
> > Ole
> >
> > On Oct 22, 2009, at 2:32 PM, Matthew Farrellee wrote:
> >
> > > Ole Weidner wrote:
> > > > Hi,
> > > >
> > > > I'm trying to compile this little test program (extracted from an  
> > > > m4
> > > > macro):
> > > >
> > > > #include <classad_distribution.h>
> > > >
> > > > int main ()
> > > > {
> > > >   classad::ClassAd ad; classad::ClassAdParser parser;
> > > >
> > > >   return 0;
> > > > }
> > > >
> > > > With this gcc command line:
> > > >
> > > > g++ -o conftest -g -Wall  -I/usr/local/classads-1.0.4//include/ 
> > > > classad
> > > > -I/usr/local/classads-1.0.4//include -DWANT_NAMESPACES -
> > > > DWANT_CLASSAD_NAMESPACE classadd_test.c  -L/usr/local/ 
> > > > classads-1.0.4//
> > > > lib -lclassad -ldl
> > > >
> > > > The linker complains about missing symbols:
> > > >
> > > > Undefined symbols:
> > > >  "classad::ClassAd::ClassAd()", referenced from:
> > > >      _main in ccAha9V1.o
> > > >  "classad::ClassAdParser::~ClassAdParser()", referenced from:
> > > >      _main in ccAha9V1.o
> > > >  "classad::ClassAd::~ClassAd()", referenced from:
> > > >      _main in ccAha9V1.o
> > > >      _main in ccAha9V1.o
> > > >  "classad::ClassAdParser::ClassAdParser()", referenced from:
> > > >      _main in ccAha9V1.o
> > > > ld: symbol(s) not found
> > > >
> > > > I'm using classads 1.0.4 compiled from sources on OS X 1.6 (64bit).
> > > > Any ideas what's going wrong here?
> > > >
> > > > Thanks,
> > > > Ole
> > > > Condor Classads Info:
> > > > http://www.cs.wisc.edu/condor/classad/
> > > Make sure you compiled libclassad with WANT_NAMESPACES, you might  
> > > need
> > > -lclassad_ns instead.
> > >
> > > Best,
> > >
> > >
> > > matt