Calling Prolog predicates from a C program.

Hi all,
I would like to have a standalone executable that makes prolog queries
and prints out the results. Here is my implementation.

/* Start*/
#include"SWI-Prolog.h"
main(int argc,char **argv)
{

if ( !PL_initialise(argc, argv) )
PL_halt(1);
static predicate_t pred_id;
term_t t0=PL_new_term_refs(4);
pred_id=PL_predicate("my_getdata",4,"getdata");
PL_call_predicate(NULL,PL_Q_NORMAL,pred_id,t0);
}
/* End*/

I am trying to compile this program using the following command.
'plld temp.c -L .'

On doing this, I am getting the following error:
temp.o(.text+0x1a): In function `main':
: undefined reference to `PL_initialise'
temp.o(.text+0x2b): In function `main':
: undefined reference to `PL_halt'
temp.o(.text+0x38): In function `main':
: undefined reference to `PL_new_term_refs'
temp.o(.text+0x52): In function `main':
: undefined reference to `PL_predicate'
temp.o(.text+0x6c): In function `main':
: undefined reference to `PL_call_predicate'
collect2: ld returned 1 exit status
gcc returned code 256
*** plld exit status 1

The libpl.a is in the same directory as the file temp.c


Can someone help me in resolving the linker errors above.

Thanks in advance.
Sujai.

.

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