어떡해야 하나염???
  $ ldd a.out
  liblber.so.1 => /usr/lib/liblber.so.1 (0x000002000011e000)
 libldap.so.1 => /usr/lib/libldap.so.1 (0x0000020000226000)
 libc.so.6.1 => /usr/lib/libc.so.6.1 (0x0000020000342000)
 /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x0000020000000000)
 #################################################################
 /var/log/messages
  a.out: error in loading shared libraries: libc.so.6.1:
 failed to map segment from shared object:
 Cannot allocate memory--냥냥냥..