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# Copyright 2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=5

if [[ "${PV}" == "9999" ]] ; then
	inherit cmake-utils subversion eutils multilib
else
	inherit cmake-utils eutils multilib
fi

DESCRIPTION="library for solving partial differential equations with the finite element method"
HOMEPAGE="http://www.dealii.org/"

if [[ "${PV}" == "9999" ]] ; then
	ESVN_REPO_URI="https://svn.dealii.org/trunk/deal.II"
	ESVN_OPTIONS="--trust-server-cert --non-interactive"
	KEYWORDS=""
else
	SRC_URI="https://dealii.googlecode.com/files/deal.II-${PV}.tar.gz
		doc? ( https://dealii.googlecode.com/files/deal.offlinedoc-${PV}.tar.gz )"
	S="${WORKDIR}/deal.II"
	KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
fi

LICENSE="LGPL-2.1+"
SLOT="0"
IUSE="
  arpack avx +debug doc +examples hdf5 +lapack mesh_converter metis mpi
  mumps netcdf p4est parameter_gui petsc +sparse sse2 static-libs +tbb
  trilinos +zlib
"

# TODO: add slepc use flag once slepc is packaged for gentoo-science
REQUIRED_USE="
	mumps? ( mpi lapack )
	p4est? ( mpi )
	trilinos? ( mpi )
"

RDEPEND="
	dev-libs/boost
	arpack? ( sci-libs/arpack[mpi=] )
	doc? ( app-doc/doxygen[dot] dev-lang/perl )
	hdf5? ( sci-libs/hdf5[mpi=] )
	lapack? ( virtual/lapack )
	metis? ( >=sci-libs/parmetis-4 )
	mpi? ( virtual/mpi )
	mumps? ( sci-libs/mumps[mpi] )
	netcdf? ( || ( <sci-libs/netcdf-4.2[cxx] sci-libs/netcdf-cxx ) )
	p4est? ( sci-libs/p4est[mpi] )
	parameter_gui? ( dev-qt/qtgui )
	petsc? ( sci-mathematics/petsc[mpi=] )
	sparse? ( sci-libs/umfpack )
	tbb? ( dev-cpp/tbb )
	trilinos? ( sci-libs/trilinos )
	zlib? ( sys-libs/zlib )
"

DEPEND="
	${RDEPEND}
	virtual/pkgconfig
"

src_configure() {

	if [[ ${PV} == "9999" ]] ; then
		subversion_wc_info
		local live_version="-DDEAL_II_PACKAGE_VERSION=99.99.svn${ESVN_WC_REVISION}"
	fi

	if use debug; then
		CMAKE_BUILD_TYPE="DebugRelease"
	else
		CMAKE_BUILD_TYPE="Release"
	fi

	local mycmakeargs=(
		${live_version}
		"-DDEAL_II_ALLOW_AUTODETECTION=OFF"
		"-DDEAL_II_ALLOW_BUNDLED=OFF"
		"-DDEAL_II_ALLOW_PLATFORM_INTROSPECTION=OFF"
		$(cmake-utils_use arpack DEAL_II_WITH_ARPACK)
		$(cmake-utils_use avx DEAL_II_HAVE_AVX)
		$(cmake-utils_use doc DEAL_II_COMPONENT_DOCUMENTATION)
		$(cmake-utils_use examples DEAL_II_COMPONENT_EXAMPLES)
		$(cmake-utils_use hdf5 DEAL_II_WITH_HDF5)
		$(cmake-utils_use lapack DEAL_II_WITH_LAPACK)
		$(cmake-utils_use mesh_converter DEAL_II_COMPONENT_MESH_CONVERTER)
		$(cmake-utils_use metis DEAL_II_WITH_METIS)
		$(cmake-utils_use mpi DEAL_II_WITH_MPI)
		$(cmake-utils_use mumps DEAL_II_WITH_MUMPS)
		$(cmake-utils_use netcdf DEAL_II_WITH_NETCDF)
		$(cmake-utils_use p4est DEAL_II_WITH_P4EST)
		$(cmake-utils_use parameter_gui DEAL_II_COMPONENT_PARAMETER_GUI)
		$(cmake-utils_use petsc DEAL_II_WITH_PETSC)
		$(cmake-utils_use sparse DEAL_II_WITH_UMFPACK)
		$(cmake-utils_use sse2 DEAL_II_HAVE_SSE2)
		$(cmake-utils_use !static-libs BUILD_SHARED_LIBS)
		$(cmake-utils_use static-libs DEAL_II_PREFER_STATIC_LIBS)
		$(cmake-utils_use tbb DEAL_II_WITH_THREADS)
		$(cmake-utils_use trilinos DEAL_II_WITH_TRILINOS)
		$(cmake-utils_use zlib DEAL_II_WITH_ZLIB)
		"-DCMAKE_INSTALL_RPATH_USE_LINK_PATH=OFF"
		"-DDEAL_II_COMPONENT_COMPAT_FILES=OFF"
		"-DDEAL_II_CMAKE_MACROS_RELDIR=share/${PN}/cmake/macros"
		"-DDEAL_II_DOCHTML_RELDIR=share/doc/${PF}/html"
		"-DDEAL_II_DOCREADME_RELDIR=share/doc/${PF}/"
		"-DDEAL_II_EXAMPLES_RELDIR=share/doc/${PF}/examples"
		"-DDEAL_II_LIBRARY_RELDIR=$(get_libdir)"
		)
	cmake-utils_src_configure
}

src_install() {
	dodoc README

	if use doc; then
		if [[ ${PV} != "9999" ]] ; then
			# copy missing images to the build directory:
			cp -r "${WORKDIR}"/doc/doxygen/deal.II/images "${BUILD_DIR}"/doc/doxygen/deal.II
			# replace links:
			sed -i \
				's#"http://www.dealii.org/images/steps/developer/\(step-.*\)"#"images/\1"#g' \
				"${BUILD_DIR}"/doc/doxygen/deal.II/step_*.html || die "sed failed"
		fi
	fi
	cmake-utils_src_install

	# unpack the installed example sources:
	use examples && docompress -x /usr/share/doc/${PF}/examples
}