mmalloc problems

[Antonio SJ Musumeci <bile at landofbile dot com>]

Linux 2.6.6 vanilla, gdb 6.2.1, gcc 3.3.4 --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-shared --disable-nls

mapped_data does not exist prior

{
  fd = open("mapped_data", O_CREAT|O_RDWR, S_IRWXU);
  md = mmalloc_attach(fd, NULL);

  data = mmalloc(md, 0x5000);

  mmalloc_detach(md);
}

results in
./a.out: relocation error: ./a.out: symbol getpagesize, version GLIBC_2.0 not
defined in file libc.so.6 with link time reference

if i replace data=mmalloc(md, 0x5000)  with:

  i =0;
  while(++i)
    {
      data = mmalloc(md, 1);
      fprintf(stderr, "%d\n", i);
    }

gets upto 29696 (every time) then

#0  0x40053b61 in vfprintf () from /lib/libc.so.6
#1  0x401167c0 in _IO_2_1_stdout_ () from /lib/libc.so.6
#2  0x0804b024 in _IO_stdin_used ()
#3  0xbffffc78 in ?? ()
#4  0xbffffc98 in ?? ()
#5  0x08048836 in main (argc=1074882496, argv=0x804b024) at test.c:22

any ideas? am I using it wrong?