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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI=4

JAVA_PKG_OPT_USE="gui"
VIRTUALX_REQUIRED="manual"

inherit eutils autotools bash-completion-r1 check-reqs fdo-mime flag-o-matic \
	fortran-2 java-pkg-opt-2 toolchain-funcs virtualx

# Comments:
# - we don't rely on the configure script to find the right version of java
# packages. This should fix bug #41821
# Things that don't work:
# - tests
# - can't build without docs (-doc) 
# - has to call eautoconf, and not eautoreconf, libtool fails otherwise
# - needs to remove scilab-5.3.x before installing otherwise gets a DOCBOOK_ROOT
# error

DESCRIPTION="Scientific software package for numerical computations"
LICENSE="CeCILL-2"
HOMEPAGE="http://www.scilab.org/"
SRC_URI="http://www.scilab.org/download/${PV}/${P}-src.tar.gz"

SLOT="0"
IUSE="bash-completion debug +doc fftw +gui +matio nls openmp
	static-libs test tk +umfpack xcos"
REQUIRED_USE="xcos? ( gui ) doc? ( gui )"

# ALL_LINGUAS variable defined in configure.ac
LINGUAS="fr_FR zh_CN zh_TW ca_ES es_ES pt_BR"
for l in ${LINGUAS}; do
	IUSE="${IUSE} linguas_${l}"
done
LINGUASLONG="de_DE ja_JP it_IT uk_UA pl_PL ru_RU"
for l in ${LINGUASLONG}; do
	IUSE="${IUSE} linguas_${l%_*}"
done

KEYWORDS="~amd64 ~x86"

CDEPEND="dev-libs/libpcre
	dev-libs/libxml2:2
	sys-devel/gettext
	sys-libs/ncurses
	sys-libs/readline
	virtual/lapack
	fftw? ( sci-libs/fftw:3.0 )
	gui? (
		dev-java/avalon-framework:4.2
		dev-java/batik:1.7
		dev-java/commons-io:1
		dev-java/flexdock:0
		dev-java/fop:0
		dev-java/gluegen:2
		dev-java/javahelp:0
		dev-java/jeuclid-core:0
		dev-java/jgoodies-looks:2.0
		dev-java/jlatexmath:1
		dev-java/jogl:2
		>=dev-java/jrosetta-1.0.4:0
		dev-java/scirenderer:1
		dev-java/skinlf:0
		dev-java/xmlgraphics-commons:1.3
		virtual/opengl
		doc? ( dev-java/saxon:6.5 )
		xcos? ( dev-java/jgraphx:1.8 ) )
	matio? ( <sci-libs/matio-1.5 )
	tk? ( dev-lang/tk )
	umfpack? ( sci-libs/umfpack )"

RDEPEND="${CDEPEND}
	gui? ( >=virtual/jre-1.5 )"

DEPEND="${CDEPEND}
	virtual/pkgconfig
	debug? ( dev-util/lcov )
	gui? (
		>=virtual/jdk-1.5
		doc? ( app-text/docbook-xsl-stylesheets
			   dev-java/jlatexmath-fop:1
			   dev-java/xml-commons-external:1.4 )
		xcos? ( dev-lang/ocaml ) )
	test? (
		dev-java/junit:4
		gui? ( ${VIRTUALX_DEPEND} ) )"

DOCS=( "ACKNOWLEDGEMENTS" "README_Unix" "Readme_Visual.txt" )

pkg_pretend() {
	use doc && CHECKREQS_MEMORY="512M" check-reqs_pkg_pretend
}

pkg_setup() {
	if use openmp; then
		if [[ $(tc-getCC) == *gcc* ]] && ! tc-has-openmp; then
			ewarn "You are using a gcc without OpenMP capabilities"
			die "Need an OpenMP capable compiler"
		fi
		FORTRAN_NEED_OPENMP=1
	fi
	FORTRAN_STANDARD="77 90"
	fortran-2_pkg_setup
	java-pkg-opt-2_pkg_setup
	ALL_LINGUAS="en_US"
	ALL_LINGUAS_DOC="en_US"
	for l in ${LINGUAS}; do
		use linguas_${l} && ALL_LINGUAS="${ALL_LINGUAS} ${l}"
	done
	for l in ${LINGUASLONG}; do
		use linguas_${l%_*} && ALL_LINGUAS="${ALL_LINGUAS} ${l}"
	done
	export ALL_LINGUAS ALL_LINGUAS_DOC=$ALL_LINGUAS
}

src_prepare() {
	epatch \
		"${FILESDIR}/${P}-fortran-link.patch" \
		"${FILESDIR}/${P}-followlinks.patch" \
		"${FILESDIR}/${P}-gluegen.patch" \
		"${FILESDIR}/${P}-fix-random-runtime-failure.patch"

	append-ldflags $(no-as-needed)

	# increases java heap to 512M when building docs (sync with cheqreqs above)
	use doc && epatch "${FILESDIR}/${P}-java-heap.patch"

	sed -i -e "/^ALL_LINGUAS=/d" -e "/^ALL_LINGUAS_DOC=/d" -i configure.ac
	# make sure library path are preloaded in binaries
	sed -i \
		-e "s|^LD_LIBRARY_PATH=|LD_LIBRARY_PATH=${EPREFIX}/usr/$(get_libdir)/scilab:|g" \
		bin/scilab* || die
	# make sure it exports the DOCBOOK_ROOT variable
	sed -i -e "s/xsl-stylesheets-\*/xsl-stylesheets/g" bin/scilab* || die
	#add specific gentoo java directories
	if use gui; then
		sed -i -e "s|/usr/lib/jogl|/usr/lib/jogl-2|" \
			-e "s|/usr/lib64/jogl|/usr/lib64/jogl-2|" configure.ac || die
		sed -i -e "s|/usr/lib/gluegen|/usr/lib/gluegen-2|" \
			-e "s|/usr/lib64/gluegen|/usr/lib64/gluegen-2|" \
			-e "s|AC_CHECK_LIB(\[gluegen2-rt|AC_CHECK_LIB([gluegen-rt|" \
			configure.ac || die

		sed -i -e "s/jogl/jogl-2/" -e "s/gluegen/gluegen-2/" \
			etc/librarypath.xml || die
	fi
	mkdir jar || die
	pushd jar
	java-pkg_jar-from jgraphx-1.8,jlatexmath-1,flexdock,skinlf
	java-pkg_jar-from jgoodies-looks-2.0,jrosetta,scirenderer-1
	java-pkg_jar-from avalon-framework-4.2,saxon-6.5,jeuclid-core
	java-pkg_jar-from xmlgraphics-commons-1.3,commons-io-1,jlatexmath-fop-1
	java-pkg_jar-from jogl-2 jogl.all.jar jogl2.jar
	java-pkg_jar-from gluegen-2 gluegen-rt.jar gluegen2-rt.jar
	java-pkg_jar-from batik-1.7 batik-all.jar
	java-pkg_jar-from xml-commons-external-1.4 xml-apis-ext.jar
	java-pkg_jar-from commons-logging commons-logging.jar
	java-pkg_jar-from fop fop.jar
	java-pkg_jar-from javahelp jhall.jar
	if use test; then
		java-pkg_jar-from junit-4 junit.jar junit4.jar
	fi
	popd

	java-pkg-opt-2_src_prepare
	eautoconf
}

src_configure() {
	if use gui; then
		export JAVA_HOME="$(java-config -O)"
	else
		unset JAVAC
	fi

	export BLAS_LIBS="$(pkg-config --libs blas)"
	export LAPACK_LIBS="$(pkg-config --libs lapack)"
	export F77_LDFLAGS="${LDFLAGS}"
	# gentoo bug #302621
	has_version sci-libs/hdf5[mpi] && \
		export CXX=mpicxx CC=mpicc FC=mpif77 F77=mpif77

	econf \
		--enable-relocatable \
		--disable-rpath \
		--with-docbook="${EPREFIX}/usr/share/sgml/docbook/xsl-stylesheets" \
		$(use_enable debug) \
		$(use_enable debug code-coverage) \
		$(use_enable debug debug-C) \
		$(use_enable debug debug-CXX) \
		$(use_enable debug debug-fortran) \
		$(use_enable debug debug-java) \
		$(use_enable debug debug-linker) \
		$(use_enable doc build-help) \
		$(use_enable nls) \
		$(use_enable nls build-localization) \
		$(use_enable static-libs static) \
		$(use_enable test compilation-tests) \
		$(use_with fftw) \
		$(use_with gui) \
		$(use_with gui javasci) \
		$(use_with matio) \
		$(use_with openmp) \
		$(use_with tk) \
		$(use_with umfpack) \
		$(use_with xcos) \
		$(use_with xcos modelica)
}

src_compile() {
	emake
	use doc && emake doc
}

src_test() {
	if use gui; then
		Xemake check
	else
		emake check
	fi
}

src_install() {
	default
	prune_libtool_files --all
	rm -rf "${D}"/usr/share/scilab/modules/*/tests
	use bash-completion && dobashcomp "${FILESDIR}"/${PN}.bash_completion
}

pkg_postinst() {
	fdo-mime_mime_database_update
}

pkg_postrm() {
	fdo-mime_mime_database_update
}