compiling ogr

Dear all
Hi

I have installed rtai-3.0r4 on linux kernel 2.4.25.

I compiled ogr and it was successful but when I tried
to run it these appeard on the screen:


./ogrt_module.o: unresolved symbol
rt_task_make_periodic
./ogrt_module.o: unresolved symbol rtf_destroy
./ogrt_module.o: unresolved symbol rtf_put
./ogrt_module.o: unresolved symbol rt_busy_sleep
./ogrt_module.o: unresolved symbol rt_task_wait_period
./ogrt_module.o: unresolved symbol nam2num
./ogrt_module.o: unresolved symbol rt_task_delete
./ogrt_module.o: unresolved symbol nano2count
./ogrt_module.o: unresolved symbol rt_get_time
./ogrt_module.o: unresolved symbol rt_shm_free
./ogrt_module.o: unresolved symbol stop_rt_timer
./ogrt_module.o: unresolved symbol start_rt_timer
./ogrt_module.o: unresolved symbol rt_task_init
./ogrt_module.o: unresolved symbol rtf_create
./ogrt_module.o: unresolved symbol rt_shm_alloc
ogr: rtai_malloc() failed in main().
./ogr.sh: line 7:  3588 Segmentation fault      nice
-n -10 ./ogr_main -b 0xb800
rmmod: module ogrt_module is not loaded


any ideas

regards


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