I am running the latest develop as of f5bc0cb and am building adios

• depends_on('libtool', type='build')
• depends_on('mpi', when='+mpi') while mpi=True is the default

.

Doing a spack install adios leads to an install of libtool itself for build and libtool again due to mpi with ^[email protected]%[email protected]

$ spack graph --concretize openmpi
o  openmpi
o  hwloc
o  libpciaccess
o  libtool
o  m4
o  libsigsegv

This results in an error while spack install-ing adios, directly after building openmpi:

==> Building openmpi
==> Successfully installed openmpi
  Fetch: 10.65s.  Build: 10m 40.85s.  Total: 10m 51.50s.
[+] [...]/opt/spack/linux-debian8-x86_64/gcc-4.9.2/openmpi-2.0.0-[...]

==> Error: Specs [email protected]%[email protected]
  arch=linux-debian8-x86_64^[email protected]%[email protected]
    arch=linux-debian8-x86_64^[email protected]%[email protected]+sigsegv
    arch=linux-debian8-x86_64
  and
  [email protected]%[email protected]
    arch=linux-debian8-x86_64
  have the same SHA-1 prefix!

I cleaned my repo with

rm -rf /tmp/$(whoami)/spack-stage bin/ etc/ lib/ opt/ share/ var/
git checkout .

beforehand.