[Libguestfs] libguestfs install error

hi all: I am trying to use libguestfs to manage my vm disk , I want to use guestfs-lib the C library on ubuntu 12.04. so I download libguestfs-1.28.1 and try to install it . what I did is : ./autogen.sh ./configure make this time some errors occurs : File "output_libvirt.ml", line 53, characters 4-13: Error: Unbound value List.mapi make[2]: *** [output_libvirt.cmx] Error 2 make[2]: Leaving directory `/usr/Libvmi/libguestfs-1.28.1/v2v' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/Libvmi/libguestfs-1.28.1' make: *** [all] 错误 2 I still can't fix it after searching so please help me !