--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+FORTRAN_NEEDED=fortran
+
+inherit cuda eutils flag-o-matic fortran-2 java-pkg-opt-2 multilib toolchain-funcs versionator
+
+MY_P=${P/-mpi}
+S=${WORKDIR}/${MY_P}
+
+IUSE_OPENMPI_FABRICS="
+ openmpi_fabrics_ofed
+ openmpi_fabrics_knem
+ openmpi_fabrics_psm"
+
+IUSE_OPENMPI_RM="
+ openmpi_rm_pbs
+ openmpi_rm_slurm"
+
+IUSE_OPENMPI_OFED_FEATURES="
+ openmpi_ofed_features_control-hdr-padding
+ openmpi_ofed_features_connectx-xrc
+ openmpi_ofed_features_udcm
+ openmpi_ofed_features_rdmacm
+ openmpi_ofed_features_dynamic-sl
+ openmpi_ofed_features_failover"
+
+DESCRIPTION="A high-performance message passing library (MPI)"
+HOMEPAGE="http://www.open-mpi.org"
+SRC_URI="http://www.open-mpi.org/software/ompi/v$(get_version_component_range 1-2)/downloads/${MY_P}.tar.bz2"
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~ppc64 ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux"
+IUSE="cma cuda +cxx elibc_FreeBSD fortran heterogeneous ipv6 java mpi-threads numa romio threads vt
+ ${IUSE_OPENMPI_FABRICS} ${IUSE_OPENMPI_RM} ${IUSE_OPENMPI_OFED_FEATURES}"
+
+REQUIRED_USE="openmpi_rm_slurm? ( !openmpi_rm_pbs )
+ openmpi_rm_pbs? ( !openmpi_rm_slurm )
+ openmpi_fabrics_psm? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_control-hdr-padding? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_connectx-xrc? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_udcm? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_rdmacm? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_dynamic-sl? ( openmpi_fabrics_ofed )
+ openmpi_ofed_features_failover? ( openmpi_fabrics_ofed )"
+
+MPI_UNCLASSED_DEP_STR="
+ vt? (
+ !dev-libs/libotf
+ !app-text/lcdf-typetools
+ )"
+
+CDEPEND="
+ !sys-cluster/mpich
+ !sys-cluster/mpich2
+ !sys-cluster/mpiexec
+ dev-libs/libevent
+ dev-libs/libltdl:0
+ >=sys-apps/hwloc-1.9.1[numa?]
+ sys-libs/zlib
+ cuda? ( dev-util/nvidia-cuda-toolkit )
+ elibc_FreeBSD? ( dev-libs/libexecinfo )
+ openmpi_fabrics_ofed? ( sys-infiniband/ofed:* )
+ openmpi_fabrics_knem? ( sys-cluster/knem )
+ openmpi_fabrics_psm? ( sys-infiniband/infinipath-psm:* )
+ openmpi_rm_pbs? ( sys-cluster/torque )
+ openmpi_rm_slurm? ( sys-cluster/slurm )
+ openmpi_ofed_features_rdmacm? ( sys-infiniband/librdmacm:* )"
+
+RDEPEND="${CDEPEND}
+ java? ( >=virtual/jre-1.6 )"
+
+DEPEND="${CDEPEND}
+ java? ( >=virtual/jdk-1.6 )"
+
+pkg_setup() {
+ fortran-2_pkg_setup
+ java-pkg-opt-2_pkg_setup
+
+ if use mpi-threads; then
+ echo
+ ewarn "WARNING: use of MPI_THREAD_MULTIPLE is still disabled by"
+ ewarn "default and officially unsupported by upstream."
+ ewarn "You may stop now and set USE=-mpi-threads"
+ echo
+ fi
+
+ echo
+ elog "OpenMPI has an overwhelming count of configuration options."
+ elog "Don't forget the EXTRA_ECONF environment variable can let you"
+ elog "specify configure options if you find them necessary."
+ echo
+}
+
+src_prepare() {
+ # Necessary for scalibility, see
+ # http://www.open-mpi.org/community/lists/users/2008/09/6514.php
+ if use threads; then
+ echo 'oob_tcp_listen_mode = listen_thread' \
+ >> opal/etc/openmpi-mca-params.conf
+ fi
+}
+
+src_configure() {
+ local myconf=(
+ --sysconfdir="${EPREFIX}/etc/${PN}"
+ --enable-pretty-print-stacktrace
+ --enable-orterun-prefix-by-default
+ --with-hwloc="${EPREFIX}/usr"
+ --with-libltdl="${EPREFIX}/usr"
+ )
+
+ if use fortran; then
+ myconf+=(--enable-mpi-fortran=all)
+ else
+ myconf+=(--enable-mpi-fortran=no)
+ fi
+
+ if use java; then
+ # We must always build with the right -source and -target
+ # flags. Passing flags to javac isn't explicitly supported here
+ # but we can cheat by overriding the configure test for javac.
+ export ac_cv_path_JAVAC="$(java-pkg_get-javac) $(java-pkg_javac-args)"
+ fi
+
+ ! use vt && myconf+=(--enable-contrib-no-build=vt)
+
+ econf "${myconf[@]}" \
+ $(use_enable cxx mpi-cxx) \
+ $(use_with cma) \
+ $(use_with cuda cuda "${EPREFIX}"/opt/cuda) \
+ $(use_enable romio io-romio) \
+ $(use_enable heterogeneous) \
+ $(use_enable ipv6) \
+ $(use_enable java) \
+ $(use_enable java mpi-java) \
+ $(use_enable mpi-threads mpi-thread-multiple) \
+ $(use_with openmpi_fabrics_ofed verbs "${EPREFIX}"/usr) \
+ $(use_with openmpi_fabrics_knem knem "${EPREFIX}"/usr) \
+ $(use_with openmpi_fabrics_psm psm "${EPREFIX}"/usr) \
+ $(use_enable openmpi_ofed_features_control-hdr-padding openib-control-hdr-padding) \
+ $(use_enable openmpi_ofed_features_connectx-xrc openib-connectx-xrc) \
+ $(use_enable openmpi_ofed_features_rdmacm openib-rdmacm) \
+ $(use_enable openmpi_ofed_features_udcm openib-udcm) \
+ $(use_enable openmpi_ofed_features_dynamic-sl openib-dynamic-sl) \
+ $(use_enable openmpi_ofed_features_failover btl-openib-failover) \
+ $(use_with openmpi_rm_pbs tm) \
+ $(use_with openmpi_rm_slurm slurm)
+}
+
+src_install () {
+ default
+
+ # From USE=vt see #359917
+ rm "${ED}"/usr/share/libtool &> /dev/null
+
+ # Avoid collisions with libevent
+ rm -rf "${ED}"/usr/include/event2 &> /dev/null
+
+ # Remove la files, no static libs are installed and we have pkg-config
+ find "${ED}"/usr/$(get_libdir)/ -type f -name '*.la' -delete
+
+ if use java; then
+ local mpi_jar="${ED}"/usr/$(get_libdir)/mpi.jar
+ java-pkg_dojar "${mpi_jar}"
+ # We don't want to install the jar file twice
+ # so let's clean after ourselves.
+ rm "${mpi_jar}" || die
+ fi
+
+ dodoc README AUTHORS NEWS VERSION || die
+}
+
+src_test() {
+ # Doesn't work with the default src_test as the dry run (-n) fails.
+ emake -j1 check
+}