Arduino I/O with Linuxcnc

cnc@LinuxCNC:/usr/share/linuxcnc/src/hal/components$ halcompile --compile serialreceive.comp
gcc -I/usr/include -I/usr/include/linuxcnc -URTAPI -U__MODULE__ -DULAPI -Os  -o serialreceive /tmp/tmpT2HXKd/serialreceive.c -Wl,-rpath,/lib -L/lib -llinuxcnchal 
/tmp/tmpT2HXKd/serialreceive.c: In function ‘__comp_parse_count’:
/tmp/tmpT2HXKd/serialreceive.c:79:13: error: ‘count’ undeclared (first use in this function)
             count = strtoul(&argv[i][6], NULL, 0);
             ^~~~~
/tmp/tmpT2HXKd/serialreceive.c:79:13: note: each undeclared identifier is reported only once for each function it appears in
/tmp/tmpT2HXKd/serialreceive.c: In function ‘__comp_parse_names’:
/tmp/tmpT2HXKd/serialreceive.c:106:17: error: ‘names’ undeclared (first use in this function)
                 names[j] = strtok(p, ",");
                 ^~~~~
Makefile:2: návod pro cíl „serialreceive“ selhal
make: *** [serialreceive] Chyba 1