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# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-chemistry/vmd/vmd-1.8.5.ebuild,v 1.2 2006/11/09 14:08:51 markusle Exp $

inherit eutils toolchain-funcs python

DESCRIPTION="Visual Molecular Dynamics"
LICENSE="vmd"
HOMEPAGE="http://www.ks.uiuc.edu/Research/vmd/"
SRC_URI="${P}.src.tar.gz"

SLOT="0"
KEYWORDS="~ppc ~x86"
IUSE="hardened"

RESTRICT="fetch"

DEPEND="app-shells/tcsh
	|| ( x11-libs/libXft virtual/x11 )
	virtual/opengl
	x11-libs/fltk
	sci-libs/netcdf
	=dev-lang/tcl-8.4*
	=dev-lang/tk-8.4*
	>=dev-lang/python-2.3
	sci-biology/stride
	hardened? ( sys-apps/paxctl )"


VMD_DOWNLOAD="http://www.ks.uiuc.edu/Development/Download/download.cgi?PackageName=VMD"

pkg_nofetch() {
	echo
	einfo "Please download ${SRC_URI} from"
	einfo "${VMD_DOWNLOAD}"
	einfo "after agreeing to the license and then move it to "
	einfo "${DISTDIR}"
	echo
}

src_unpack() {
	unpack ${A}

	# apply LINUX-arch patches to vmd configure
	epatch "${FILESDIR}"/${P}-config-gentoo.patch
#	epatch "${FILESDIR}"/${P}-plugin-autopsf.patch

	# prepare the plugins 

	cd "${WORKDIR}"/plugins

	sed -e "s/CC = gcc/CC = $(tc-getCC)/" \
	    -e "s/CXX = g++/CXX = $(tc-getCXX)/" \
		-e "s/COPTO = -o /COPTO = -fPIC -o /" \
		-e "s/LOPTO = -o /LOPTO = -fPIC -o /" \
		-e "s/CCFLAGS = -O2 -Wall/CCFLAGS = ${CFLAGS}/" \
		-e "s/CXXFLAGS = -O2 -Wall/CXXFLAGS = ${CXXFLAGS}/" \
		-e "s/SHLD = gcc/SHLD = $(tc-getCC)/" \
	    -i Make-arch || die "Failed to set up plugins Makefile"

	# prepare vmd itself

	cd "${S}"

	sed -e "s:gentoo-bindir:${D}/usr/bin:" \
		-e "s:gentoo-libdir:${D}/usr/$(get_libdir):" \
		-i configure || die "failed to adjust install paths"


	sed -e "s:gentoo-gcc:$(tc-getCC):" \
		-e "s:gentoo-g++:$(tc-getCXX):" \
		-e "s:gentoo-cflags:${CFLAGS}:" \
		-i configure || die "Failed to adjust C compiler/flags"


	sed -e "s:gentoo-plugindir:${WORKDIR}/plugins:" \
		-i configure || die "Failed to set up linking to plugin files"

	sed -e "s:gentoo-fltk-include:/usr/include/fltk-1.1:" \
		-e "s:gentoo-fltk-libs:/usr/$(get_libdir)/fltk-1.1:" \
		-i configure || die "failed setting up fltk"


	# get installed python version
	python_version
	local PY="python${PYVER}"

	sed -e "s:gentoo-python-include:/usr/include/${PY}:" \
		-e "s:gentoo-python-lib:/usr/$(get_libdir)/${PY}:" \
		-e "s:gentoo-python-link:${PY}:" \
		-i configure || die "failed setting up python"

	sed -e "s:LINUXPPC:LINUX:g" \
		-e "s:LINUXALPHA:LINUX:g" \
		-e "s:LINUXAMD64:LINUX:g" \
		-i ${S}/bin/vmd || die "failed setting up vmd wrapper script"

	local myconfig="LINUX OPENGL FLTK TK TCL PTHREADS PYTHON IMD"

	rm -f configure.options && echo $myconfig >> configure.options

	./configure &> /dev/null || die "failed to configure"

}

src_compile() {
	# build plugins
	cd "${WORKDIR}"/plugins
	make LINUX TCLINC="-I/usr/include" \
		TCLLIB="-L/usr/$(get_libdir)/tcl8.4" || \
		die "failed to build plugins"

	# build vmd
	cd "${S}"/src
	make || die "failed to build vmd"
}

src_install() {
	# install plugins
	cd "${WORKDIR}"/plugins
	PLUGINDIR=${D}/usr/$(get_libdir)/${PN}/plugins make distrib || \
		die "failed to install plugins"

	# install vmd 
	cd "${S}"/src
	make install || die "failed to install vmd"

	# export STRIDE_BIN so VMD find stride
	echo "STRIDE_BIN=/usr/bin/stride" > ${T}/99${PN} || \
		die "Failed to create vmd env file"
	doenvd ${T}/99${PN} || die "Failed to install vmd env file"

	# install docs
	cd "${S}"
	dodoc Announcement README doc/ig.pdf doc/ug.pdf

	# remove some of the things we don't want and need in 
	# /usr/lib
	cd "${D}"/usr/$(get_libdir)/vmd
	rm -fr doc README Announcement LICENSE || \
		die "failed to clean up /usr/lib/vmd directory"

	# adjust path in vmd wrapper
	sed -e "s:${D}::" -i "${D}"/usr/bin/${PN} \
		|| die "failed to set up vmd wrapper script"

	# adjust paxctl settings on hardened systems
	if use hardened; then
		/sbin/paxctl -pemrxs ${D}/usr/$(get_libdir)/${PN}/${PN}_LINUX
	fi
}