EMC startup error

[Niyom Racharin <niyom-at-ubt.co.th>]

Hello All, 
I am a new EMC user. I have a custom made 60 x 120cm cnc xyz table and want 
to use EMC to control its and got the following error during startup. 
==========> 
[cnc-at-localhost emc]$ ./emc.run
/usr/local/nist/emc
Current platform is linux_2_4_4
Current real-time platform is rtlinux_3_1
inivar = plat/linux_2_4_4/bin/inivar
INIFILE = emc.ini
RS274NGC_PARAMFILE = emc.var
starting emc...
Removing module steppermod
steppermod: Operation not permitted
starting EMC MOTION PROGRAM --
steppermod.o...plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol
shm_allocate
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol pthread_setfp_np
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol gethrtime
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol rtl_sched
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol shm_deallocate
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol rtl_setclockmode
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol pthread_delete_np
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol
pthread_make_periodic_np
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol pthread_wait_np
plat/rtlinux_3_1/lib/steppermod.o: unresolved symbol __pthread_create
can't install it
Removing module steppermod
steppermod: Operation not permitted
emc.ini was not changed.
emc.var was not changed. 
<================ 
Additional information 
- RedHat 7.1 
- Linux kernel 2.4.4 and rtlinux-3.1 
- Use emc8-3src.aaa and emc8-3src.aab as a source code 
- Use kgcc to compile the kernel 
- Use egcs to compile the EMC and no error or warning shown. 
- All files and directories under /usr/local/nist are belong to owner and
group of cnc:cnc 
and I run its as a cnc user. 
Would you please try to advise me to solve the problem and my system up and
running. 
Regards. 
Niyom Racharin 
email niyom-at-ubt.co.th <niyom-at-ubt.co.th> 
r_niyom-at-yahoo.com <r_niyom-at-yahoo.com>