# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/hdf5/hdf5-1.8.10.ebuild,v 1.12 2013/02/25 13:31:19 ago Exp $

EAPI=4

FORTRAN_NEEDED=fortran

inherit autotools eutils fortran-2 flag-o-matic toolchain-funcs multilib

DESCRIPTION="General purpose library and file format for storing scientific data"
HOMEPAGE="http://www.hdfgroup.org/HDF5/"
SRC_URI="http://www.hdfgroup.org/ftp/HDF5/releases/${P}/src/${P}.tar.bz2"

LICENSE="NCSA-HDF"
SLOT="0"
KEYWORDS="alpha amd64 ia64 ppc ppc64 sparc x86 ~x86-fbsd ~amd64-linux ~x86-linux"
IUSE="cxx debug examples fortran fortran2003 mpi static-libs szip threads zlib"

REQUIRED_USE="
	cxx? ( !mpi ) mpi? ( !cxx )
	threads? ( !cxx !mpi !fortran )
	fortran2003? ( fortran )"

RDEPEND="
	mpi? ( virtual/mpi[romio] )
	szip? ( >=sci-libs/szip-2.1 )
	zlib? ( sys-libs/zlib )"

DEPEND="${RDEPEND}
	sys-devel/libtool:2
	>=sys-devel/autoconf-2.69"

pkg_setup() {
	tc-export CXX CC AR # workaround for bug 285148
	if use fortran; then
		use fortran2003 && FORTRAN_STANDARD=2003
		fortran-2_pkg_setup
	fi
	if use mpi; then
		if has_version 'sci-libs/hdf5[-mpi]'; then
			ewarn "Installing hdf5 with mpi enabled with a previous hdf5 with mpi disabled may fail."
			ewarn "Try to uninstall the current hdf5 prior to enabling mpi support."
		fi
		export CC=mpicc
		use fortran && export FC=mpif90
	elif has_version 'sci-libs/hdf5[mpi]'; then
		ewarn "Installing hdf5 with mpi disabled while having hdf5 installed with mpi enabled may fail."
		ewarn "Try to uninstall the current hdf5 prior to disabling mpi support."
	fi
}

src_prepare() {
	epatch "${FILESDIR}"/${P}-buildsystem.patch \
		"${FILESDIR}"/${PN}-1.8.8-array_bounds.patch \
		"${FILESDIR}"/${P}-implicits.patch \
		"${FILESDIR}"/${PN}-1.8.9-static_libgfortran.patch \
		"${FILESDIR}"/${PN}-1.8.9-mpicxx.patch \
		"${FILESDIR}"/${P}-comments.patch
	# respect gentoo examples directory
	sed \
		-e "s:hdf5_examples:doc/${PF}/examples:g" \
		-i $(find . -name Makefile.am) $(find . -name "run*.sh.in") || die
	sed \
		-e '/docdir/d' \
		-i config/commence.am || die
	if ! use examples; then
		sed -e '/^install:/ s/install-examples//' \
			-i Makefile.am || die #409091
	fi
	eautoreconf
	# enable shared libs by default for h5cc config utility
	sed -i -e "s/SHLIB:-no/SHLIB:-yes/g" tools/misc/h5cc.in	|| die
	# bug #419677
	use prefix && \
		append-ldflags -Wl,-rpath,"${EPREFIX}"/usr/$(get_libdir) \
		-Wl,-rpath,"${EPREFIX}"/$(get_libdir)
}

src_configure() {
	econf \
		--enable-production \
		--docdir="${EPREFIX}"/usr/share/doc/${PF} \
		--enable-deprecated-symbols \
		--enable-shared \
		--disable-silent-rules \
		$(use_enable prefix sharedlib-rpath) \
		$(use_enable static-libs static) \
		$(use_enable debug debug all) \
		$(use_enable debug codestack) \
		$(use_enable cxx) \
		$(use_enable fortran) \
		$(use_enable fortran2003) \
		$(use_enable mpi parallel) \
		$(use_enable threads threadsafe) \
		$(use_with szip szlib) \
		$(use_with threads pthread) \
		$(use_with zlib) \
		${myconf}
}

src_install() {
	default
	use static-libs || find "${ED}" -name '*.la' -exec rm -f {} +
}

pkg_postinst() {
	if has_version "sci-libs/hdf5"; then
		ewarn "You have upgraded hdf5 from previous version and the software"
		ewarn "using it may start complaining about mismatch between headers"
		ewarn "and library version. You have two options:"
		ewarn "  1. export HDF5_DISABLE_VERSION_CHECK=2 to get rid of the"
		ewarn "     warning/error message"
		ewarn "  2. re-emerge all reverse dependencies (type"
		ewarn "     'emerge --depclean -pv sci-libs/hdf5' to get the list)"
	fi
}