Re: Undefined reference to just about everything... am I doing something wrong?

Oops, sorry, that link is probably even too advanced,  This one is
probably better.

http://crasseux.com/books/ctutorial/Libraries.html#Libraries

</Ace>

On Fri, 2005-10-21 at 19:18, ace jones wrote:
> Hi, Nate.  You need to link in libnjb, which defines those symbols.  You
> probably should become familiar with:
> 
> http://www.faqs.org/docs/Linux-HOWTO/GCC-HOWTO.html
> 
> </Ace>
> 
> On Fri, 2005-10-21 at 15:23, Nate Freeman wrote:
> > I recently compiled and installed libnjb-2.2.4 from source on a Mandrake 
> > Linux system for use with a Dell DJ. I also installed gnomad2, but now I 
> > want to work with the library a bit. However, I can't compile my own 
> > programs for some reason. Gnomad2 works just fine, so I know that 
> > something's working. Here's the source of my program and the command I'm 
> > using to compile it. As you can see, I didn't get very far before I 
> > started getting problems compiling.
> > 
> > /home/nfreeman/projects/dj_functions/dj_functions.cpp:
> > 
> >         #include <libnjb.h>
> >         #include <stdio.h>
> >         #include <string.h>
> >        
> >         int main(int argc, char **argv)
> >         {
> >         //There's actually quite a bit of code right here that deals 
> > with the arguments to the program, but it doesn't really apply to the 
> > situation so I just omitted it.
> >         //Begin DJ initialization code.
> >             int n = 1;
> >             njb_t njbs[NJB_MAX_DEVICES], *njb;
> >             njb_songid_t *songid;
> >             if( NJB_Discover(njbs, 0, &n) == 1 );
> >             {
> >                 printf("***FATAL ERROR:\n   Jukebox Discovery failed.\n");
> >                 return 3;
> >             }
> >             if( n == 0 )
> >             {
> >                 printf("***FATAL ERROR:\n   No Jukeboxes found.\n");
> >                 return 3;
> >             }
> >             return 0;
> >         }
> > 
> > And the compilation command and output (after changing to the correct 
> > directory):
> >         $ c++ ./dj_functions.cpp -o ./dj_functions
> >         /home/nfreeman/tmp/ccELWHeO.o(.text+0x318): In function `main':
> >         : undefined reference to `NJB_Discover'
> >         collect2: ld returned 1 exit status
> > 
> > I'm at a loss here, but I've probably just done something stupid 
> > somewhere. Any help is appreciated very much as I'm going crazy trying 
> > to figure this out.





-------------------------------------------------------
This SF.Net email is sponsored by:
Power Architecture Resource Center: Free content, downloads, discussions,
and more. http://solutions.newsforge.com/ibmarch.tmpl