There is an unmet dependency on Ubuntu 14.10 (arch=amd64) for building the Ceph Debian packages.

nwatkins@node:~$ git clone --recursive https://github.com/ceph/ceph.git
Cloning into 'ceph'...
remote: Counting objects: 276504, done.
...
nwatkins@node:~$ cd ceph
nwatkins@node:~/ceph$ ./install-deps.sh 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
dpkg-dev is already the newest version.
The following packages were automatically installed and are no longer required:
  liblzo2-2 libpkcs11-helper1
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'libpython2.7-stdlib' instead of 'python-argparse'
E: Unable to locate package libgoogle-perftools-dev

This package is available for arm64 in sid/jessie, but it hasn't made it up to Ubuntu repositories yet. Let's try to download and install it manually.

nwatkins@node:~$ wget http://http.us.debian.org/debian/pool/main/g/google-perftools/libgoogle-perftools4_2.2.1-0.2_arm64.deb
nwatkins@node:~$ wget http://http.us.debian.org/debian/pool/main/g/google-perftools/libtcmalloc-minimal4_2.2.1-0.2_arm64.deb
nwatkins@node:~$ wget http://http.us.debian.org/debian/pool/main/g/google-perftools/libgoogle-perftools-dev_2.2.1-0.2_arm64.deb
nwatkins@node:~$ sudo dpkg -i *.deb
(Reading database ... 80633 files and directories currently installed.)
Preparing to unpack libgoogle-perftools4_2.2.1-0.2_arm64.deb ...
Unpacking libgoogle-perftools4 (2.2.1-0.2) over (2.2.1-0.2) ...
Preparing to unpack libgoogle-perftools-dev_2.2.1-0.2_arm64.deb ...
Unpacking libgoogle-perftools-dev (2.2.1-0.2) over (2.2.1-0.2) ...
Preparing to unpack libtcmalloc-minimal4_2.2.1-0.2_arm64.deb ...
Unpacking libtcmalloc-minimal4 (2.2.1-0.2) over (2.2.1-0.2) ...
Setting up libtcmalloc-minimal4 (2.2.1-0.2) ...
Setting up libgoogle-perftools4 (2.2.1-0.2) ...
Setting up libgoogle-perftools-dev (2.2.1-0.2) ...
Processing triggers for libc-bin (2.19-10ubuntu2.1) ...

So far so good. Now let's try to install those dependencies again:

nwatkins@node:~/ceph$ ./install-deps.sh 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
dpkg-dev is already the newest version.
The following packages were automatically installed and are no longer required:
  liblzo2-2 libpkcs11-helper1
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Note, selecting 'libpython2.7-stdlib' instead of 'python-argparse'
autotools-dev is already the newest version.
autotools-dev set to manually installed.
build-essential is already the newest version.
build-essential set to manually installed.
git is already the newest version.
libboost-dev is already the newest version.
libpython2.7-stdlib is already the newest version.
libtool is already the newest version.
lsb-release is already the newest version.
python is already the newest version.
uuid-runtime is already the newest version.
libgoogle-perftools-dev is already the newest version.
The following packages were automatically installed and are no longer required:
  liblzo2-2 libpkcs11-helper1
Use 'apt-get autoremove' to remove them.
The following extra packages will be installed:
  at-spi2-core ca-certificates-java colord colord-data dbus-x11 dconf-gsettings-backend dconf-service dctrl-tools default-jre default-jre-headless desktop-file-utils devscripts dh-apparmor diffstat
  distro-info-data dput eject fontconfig fonts-dejavu-extra gconf-service gconf-service-backend gconf2 gconf2-common gettext gvfs gvfs-common gvfs-daemons gvfs-libs hardening-includes hicolor-icon-theme
  intltool-debian java-common libaio1 libapt-pkg-perl libarchive-zip-perl libasprintf-dev libasyncns0 libatasmart4 libatk-bridge2.0-0 libatk-wrapper-java libatk-wrapper-java-jni libatk1.0-0 libatk1.0-data
  libatspi2.0-0 libauthen-sasl-perl libavahi-client3 libavahi-common-data libavahi-common3 libavahi-glib1 libbabeltrace-ctf1 libbabeltrace1 libbonobo2-0 libbonobo2-common libboost-atomic1.55-dev
  libboost-atomic1.55.0 libboost-chrono1.55-dev libboost-chrono1.55.0 libboost-date-time1.55-dev libboost-date-time1.55.0 libboost-filesystem1.55.0 libboost-program-options1.55-dev
  libboost-program-options1.55.0 libboost-serialization1.55-dev libboost-serialization1.55.0
  ...

Weeeeeeee!