Problem when compiling a simple C-- program

Good day,

I have a file named sp2.cmm:

target
    memsize 8
    byteorder little
    pointersize 32
    wordsize 32;

export sp2;

sp2(bits32 n) {
  jump sp2_help(n, 1, 1);
}

sp2_help(bits32 n, bits32 s, bits32 p) {
  if n == 1 {
      return(s, p);
  } else {
      jump sp2_help(n-1, s+n, p*n);
  }
}

This is how I try to compile it:

qc-- sp2.cmm

and this is what I get:

/usr/lib/gcc-lib/i486-linux/3.3.5/../../../crt1.o(.text+0x18): In
function `_start':
../sysdeps/i386/elf/start.S:98: undefined reference to `main'
sp2.o(.data+0x0): In function `Cmm.ref_to_global_area':
: undefined reference to `Cmm.globalsig.aQOYZWMPACZAJaMABGMOZeCCPY'
collect2: ld returned 1 exit status

Though sp2.o and sp2.s gets created. What can cause that error
message? These are my system's parameters:

QC version: latest, qc--20050330
Debian sid
kernel: 2.4.27
Ocaml: 3.08.3
LUA: 4.0

ldd gc-- gives:
        libm.so.6 => /lib/libm.so.6 (0x40020000)
        libdl.so.2 => /lib/libdl.so.2 (0x40042000)
        libncurses.so.5 => /lib/libncurses.so.5 (0x40045000)
        libpthread.so.0 => /lib/libpthread.so.0 (0x40085000)
        libc.so.6 => /lib/libc.so.6 (0x400d6000)
        /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x40000000)

Thank you in advance.

-- 
'(Yours parenthetically),
peter barabas.

((call/cc call/cc) (call/cc call/cc))