Eror en instalacion de Rails version +ruby gems +git

[2011-11-10 15:20:16] make install
 cd . && /bin/bash /home/fernando/.rvm/src/yaml-0.1.4/config/missing --run automake-1.11 --foreign
src/Makefile.am:2: Libtool library used but `LIBTOOL' is undefined
src/Makefile.am:2:   The usual way to define `LIBTOOL' is to add `AC_PROG_LIBTOOL'
src/Makefile.am:2:   to `configure.ac' and run `aclocal' and `autoconf' again.
src/Makefile.am:2:   If `AC_PROG_LIBTOOL' is in `configure.ac', make sure
src/Makefile.am:2:   its definition is in aclocal's search path.
make: *** [Makefile.in] Error 1