Re: [Bug-xorriso] Link errors against libisoburn

[Thomas Schmitt]

Hi,

i tried something similar (and learned that i have to include
more type defining headers in libisoburn.h)

-----------------------------------------------------------------
#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>


#include <libburn/libburn.h>
#include <libisofs/libisofs.h>
#include <libisoburn/libisoburn.h>

int main(int argc, char **argv)
{
 char msg[1024];

 return isoburn_initialize(msg, 0);
}
-----------------------------------------------------------------

The problem seems to get introduced by

  g++ -c main.c

because this works:

  gcc -c main.c
  g++ -o isoburntest main.o -lisofs -lburn -lisoburn

whereas this does not

  g++ -c main.c
  cc -o isoburntest main.o -lisofs -lburn -lisoburn

but rather reports

  main.c:(.text+0x28): undefined reference to `isoburn_initialize(char*, int)'

It happens alike with

  g++ -o isoburntest main.c -lisofs -lburn -lisoburn

Currently i am clueless what g++ might want as extra info so that
it produces linkable main.o.

It works with a sub.o which contains a isoburn_initialize() dummy:

  g++ -c main.c
  g++ -c sub.c
  g++ -o isoburntest  main.o sub.o

So it must have to do something with the way how g++ -c produces
the symbolic link address which ld under g++ or gcc shall resolve.

Google does not help me here.
I will continue to poner but probably you need advise from C++ experts.


Have a nice day :)

Thomas