py-h5py requires hdf5 variant +mpi, but spec asked for ~mpi

[junghans]

$ spack spec ecp-proxy-apps
Input spec
--------------------------------
ecp-proxy-apps

Concretized
--------------------------------
==> Error: An unsatisfiable variant constraint has been detected for spec:

    hdf5~mpi
        ^zlib@1.2.11%gcc@5.4.0+optimize+pic+shared arch=linux-gentoo2-x86_64 


while trying to concretize the partial spec:

    py-h5py+mpi
        ^openmpi@3.1.0%gcc@5.4.0~cuda fabrics= ~java~memchecker~pmi schedulers= ~sqlite3~thread_multiple+vt arch=linux-gentoo2-x86_64 
            ^hwloc@:1.999
                ^pkgconf@1.4.0%gcc@5.4.0 arch=linux-gentoo2-x86_64 
            ^numactl
                ^autoconf@2.69%gcc@5.4.0 arch=linux-gentoo2-x86_64 
                    ^m4@1.4.18%gcc@5.4.0+sigsegv arch=linux-gentoo2-x86_64 
                        ^libsigsegv
                    ^perl@5.26.2%gcc@5.4.0+cpanm+shared arch=linux-gentoo2-x86_64 
                        ^gdbm@1.14.1%gcc@5.4.0 arch=linux-gentoo2-x86_64 
                            ^readline@7.0%gcc@5.4.0 arch=linux-gentoo2-x86_64 
                                ^ncurses@6.0%gcc@5.4.0~symlinks~termlib arch=linux-gentoo2-x86_64 
                ^automake@1.16.1%gcc@5.4.0 arch=linux-gentoo2-x86_64 
                ^libtool@2.4.6%gcc@5.4.0 arch=linux-gentoo2-x86_64 
            ^zlib@1.2.11%gcc@5.4.0+optimize+pic+shared arch=linux-gentoo2-x86_64 
        ^py-cython@0.28.1%gcc@5.4.0 arch=linux-gentoo2-x86_64 
            ^python@2.7.14%gcc@5.4.0+dbm~optimizations+pic+pythoncmd+shared~tk~ucs4 arch=linux-gentoo2-x86_64 
                ^bzip2@1.0.6%gcc@5.4.0+shared arch=linux-gentoo2-x86_64 
                ^openssl@1.0.2n%gcc@5.4.0+systemcerts arch=linux-gentoo2-x86_64 
                ^sqlite@3.22.0%gcc@5.4.0 arch=linux-gentoo2-x86_64 
        ^py-mpi4py
            ^py-setuptools@39.0.1%gcc@5.4.0 arch=linux-gentoo2-x86_64 
        ^py-numpy@1.14.2%gcc@5.4.0+blas+lapack arch=linux-gentoo2-x86_64 
            ^openblas@0.2.20%gcc@5.4.0 cpu_target= ~ilp64+pic+shared threads=none ~virtual_machine arch=linux-gentoo2-x86_64 
        ^py-pkgconfig
        ^py-six@1.11.0%gcc@5.4.0 arch=linux-gentoo2-x86_64 


py-h5py requires hdf5 variant +mpi, but spec asked for ~mpi

Thanks to @spakin for reporting.

[junghans]

Wait there is more spack/spack#8133

[junghans]

Until the issue in spack is fixed, as a workaround one can put a packages.yaml in the etc/spack/ folder of the spack installation with the following content:

packages:
  all:
    providers:
      jpeg: [libjpeg]
      gl: [opengl]