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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-cluster/mpe2/mpe2-1.0.6_p1-r1.ebuild,v 1.8 2013/01/06 18:48:37 jsbronder Exp $

EAPI=2

FORTRAN_NEEDED=fortran

inherit eutils fortran-2 java-utils-2 toolchain-funcs

MY_P=${P/_/}
DESCRIPTION="MPI development tools"
HOMEPAGE="http://www-unix.mcs.anl.gov/perfvis/download/index.htm"
SRC_URI="ftp://ftp.mcs.anl.gov/pub/mpi/${PN%2}/${MY_P}.tar.gz"

LICENSE="mpich2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="minimal fortran threads debug"

COMMON_DEPEND="!minimal? ( x11-libs/libXtst
		x11-libs/libXi )
	|| ( sys-cluster/openmpi[fortran?,threads?]
		sys-cluster/mpich2[fortran?,threads?] )"

DEPEND="!minimal? ( >=virtual/jdk-1.4 )
	${COMMON_DEPEND}"

RDEPEND="
!minimal? ( >=virtual/jre-1.4 )
	${COMMON_DEPEND}"

S="${WORKDIR}"/${MY_P}
MPE_IMP=""

# README:
# This ebuild is created to handle building with both mpich2 and openmpi.
# However, without empi (in the science overlay), and some further
# conversion to use mpi.eclass, we can only handle one implementation
# at a time.  I still believe it's better to have the ebuild setup
# correctly in preperation.

pkg_setup() {
	fortran-2_pkg_setup
	local i

	if has_version sys-cluster/openmpi; then
		MPE_IMP=openmpi
	elif has_version sys-cluster/mpich2; then
		MPE_IMP=mpich2
	else
		die "Unknown MPI implementation"
	fi

	export JFLAGS="${JFLAGS} $(java-pkg_javac-args)"

	if [[ "${MPE_IMP}" == openmpi ]] && [ -z "${MPE2_FORCE_OPENMPI_TEST}" ]; then
		echo
		elog "Currently src_test fails on collchk with openmpi, hence"
		elog "testing is disabled by default.  If you would like to"
		elog "force testing, please add MPE_FORCE_OPENMPI_TEST=1"
		elog "to your environment."
		echo
	fi

	einfo "Building with support for: sys-cluster/${MPE_IMP}"
}

src_prepare() {
	# Don't assume path contains ./
	sed -i 's,\($MPERUN\) $pgm,\1 ./$pgm,' sbin/mpetestexeclog.in
	epatch "${FILESDIR}"/slog2sdk-trace_rlog-makefile-fixes.patch
	epatch "${FILESDIR}"/slog2sdk-trace_sample-makefile-fixes.patch
}

src_configure() {
	local c="--with-mpicc=/usr/bin/mpicc"

	if use fortran; then
		c="${c} --with-mpif77=/usr/bin/mpif77"
	else
		c="${c} --disable-f77"
	fi

	if use minimal; then
		c="${c} --enable-slog2=no --disable-rlog --disable-sample"
	else
		c="${c} --with-java2=$(java-config --jdk-home) --enable-slog2=build"
	fi

	if [[ "${MPE_IMP}" == openmpi ]]; then
		c="${c} --disable-rlog --disable-sample"
	fi

	econf ${c} \
		--sysconfdir=/etc/${PN} \
		--datadir=/usr/share/${PN} \
		--with-htmldir=/usr/share/${PN} \
		--with-docdir=/usr/share/${PN} \
		--enable-collchk \
		--enable-wrappers \
		$(use_enable !minimal graphics) \
		$(use_enable threads threadlogging) \
		$(use_enable debug g)
}

src_test() {
	local rc

	cd "${S}"
	if [[ "${MPE_IMP}" == mpich2 ]]; then
		echo "MPD_SECRETWORD=junk" > "${T}"/mpd.conf
		chmod 600 "${T}"/mpd.conf
		export MPD_CONF_FILE="${T}/mpd.conf"
		"${ROOT}"usr/bin/mpd -d --pidfile="${T}"/mpd.pid
	elif [[ "${MPE_IMP}" == openmpi* ]] && [ -z "${MPE2_FORCE_OPENMPI_TEST}" ]; then
		elog
		elog "Skipping tests for openmpi"
		elog
		return 0
	fi

	# No parallel make:
	# http://trac.mcs.anl.gov/projects/mpich2/ticket/1095#comment:1
	emake -j1 \
		CC="${S}"/bin/mpecc \
		FC="${S}"/bin/mpefc \
		MPERUN="${ROOT}/usr/bin/mpiexec -n 4" \
		CLOG2TOSLOG2="${S}/src/slog2sdk/bin/clog2TOslog2" \
		check;
		rc=${?}
	if [[ "${MPE_IMP}" == mpich2 ]]; then
		"${ROOT}"usr/bin/mpdallexit || kill $(<"${T}"/mpd.pid)
	fi

	return ${rc}
}

src_install() {
	# No parallel make:
	# http://trac.mcs.anl.gov/projects/mpich2/ticket/1095#comment:1
	emake -j1 DESTDIR="${D}" install || die
	rm -f "${D}"/usr/sbin/mpeuninstall || die
}