Ceph

I'm trying to compile ceph on a Fedora 15 system but that fails when I try to run autogen.sh:

[dennis@nexus ceph-0.48.1]$ ./autogen.sh 
libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.
libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
libtoolize: `AC_PROG_RANLIB' is rendered obsolete by `LT_INIT'
configure.ac:22: installing `./compile'
configure.ac:17: installing `./config.guess'
configure.ac:17: installing `./config.sub'
configure.ac:21: installing `./install-sh'
configure.ac:23: required file `./ltmain.sh' not found
configure.ac:21: installing `./missing'
src/Makefile.am: installing `./depcomp'
src/Makefile.am:1184: installing `./py-compile'
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force 
autoreconf: configure.ac: tracing
autoreconf: running: libtoolize --copy --force
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'.
libtoolize: copying file `build-aux/ltmain.sh'
libtoolize: Consider adding `AC_CONFIG_MACRO_DIR([m4])' to configure.ac and
libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.
libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
autoreconf: running: /usr/bin/autoconf --force
autoreconf: running: /usr/bin/autoheader --force
autoreconf: running: automake --add-missing --copy --force-missing
configure.ac:29: installing `build-aux/config.guess'
configure.ac:29: installing `build-aux/config.sub'
configure.ac:23: installing `build-aux/install-sh'
configure.ac:23: installing `build-aux/missing'
Makefile.am: installing `build-aux/depcomp'
autoreconf: Leaving directory `.'
autoreconf: `configure.ac' or `configure.in' is required

I'm not sure what is going on here as the configure.ac file is clearly present:

[dennis@nexus ceph-0.48.1]$ ls -lh configure.ac 
-rw-rw-r--. 1 dennis dennis 15K Aug 13 23:58 configure.ac