# Copyright 1999-2004 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-lang/R/R-1.9.0.ebuild,v 1.4 2004/05/17 11:33:54 phosphan Exp $

IUSE="atlas X tcltk gnome f77"

DESCRIPTION="R is GNU S - A language and environment for statistical computing and graphics."

SRC_URI="http://cran.r-project.org/src/base/${P}.tgz"

	#There are daily release patches, don't know how to utilize these
	#"ftp://ftp.stat.math.ethz.ch/Software/${PN}/${PN}-release.diff.gz"

HOMEPAGE="http://www.r-project.org/"

DEPEND="virtual/glibc
		>=dev-lang/perl-5.6.1-r3
		>=sys-libs/readline-4.1-r3
		>=sys-libs/zlib-1.1.3-r2
		>=media-libs/jpeg-6b-r2
		>=media-libs/libpng-1.2.1
		x86? ( atlas? ( dev-libs/atlas ) )
		sparc? ( atlas? ( dev-libs/atlas ) )
		~amd64? ( atlas? ( dev-libs/atlas ) )
		X? ( virtual/x11 )
		tcltk? ( dev-lang/tk )
		gnome? ( >=gnome-base/gnome-libs-1.4.1.4
			>=gnome-base/libglade-0.17
			>=dev-libs/libxml-1.8.16
			>=gnome-base/ORBit-0.5.12
			>=media-libs/imlib-1.9.10
			>=x11-libs/gtk+-1.2.10
			>=dev-libs/glib-1.2.10
			>=media-sound/esound-0.2.23
			>=media-libs/audiofile-0.2.1 )"

SLOT="0"
LICENSE="GPL-2 LGPL-2.1"
KEYWORDS="~x86 ~sparc ~ppc ~amd64"

pkg_setup() {
	if [ -z $(which g77 2>/dev/null) ]; then
		if ! use f77; then
			eerror "g77 not found. Please re-emerge gcc with the USE flag"
			eerror "f77 set."
		else
			eerror "g77 not found. Maybe the f77 USE flag was not set when"
			eerror "you emerged gcc?"
		fi
		die "need g77."
	fi
}

src_unpack() {
	unpack ${A}
	cd ${S}
	sed -e 's/^#define NeedFunctionPrototypes 0/#define NeedFunctionPrototypes 1/' \
	-i src/modules/X11/dataentry.c || die "sed failed"
}

src_compile() {
	addwrite "/var/cache/fonts"
	local myconf="--enable-R-profiling --enable-R-shlib --with-readline"

	#Eventually, we will want to take into account that a user may have
	#an alternate or additional blas libraries,
	#i.e. USE variable blas and and virtual/blas
	use atlas || myconf="${myconf} --without-blas" #default enabled

	use X || myconf="${myconf} --without-x" #default enabled

	if use tcltk; then
		#configure needs to find the files tclConfig.sh and tkConfig.sh
		myconf="${myconf} --with-tcltk --with-tcl-config=/usr/lib/tclConfig.sh --with-tk-config=/usr/lib/tkConfig.sh"
	else
		myconf="${myconf} --without-tcltk"
	fi

	use gnome && myconf="${myconf} --with-gnome" #default disabled

	./configure \
		--host=${CHOST} \
		--prefix=/usr \
		--infodir=/usr/share/info \
		--mandir=/usr/share/man \
		${myconf} || die "./configure failed"

	make || die

}

src_install () {

	make \
		prefix=${D}/usr \
		mandir=${D}/usr/share/man \
		infodir=${D}/usr/share/info \
		install || die "Installation Failed"

	#fix the R wrapper script to have the correct R_HOME_DIR
	#sed regexp borrowed from included debian rules
	cp ${D}/usr/lib/R/bin/R ${S}/bin/R.orig
	sed -e '/^R_HOME_DIR=.*/s::R_HOME_DIR=/usr/lib/R:' \
		${S}/bin/R.orig > ${D}/usr/lib/R/bin/R

	#R installs two identical wrappers under /usr/bin and /usr/lib/R/bin/
	#the 2nd one is corrected by above sed, for the 1st
	#I'll just symlink it into /usr/bin
	cd ${D}/usr/bin/
	rm R
	dosym ../lib/R/bin/R /usr/bin/R
	cd ${S}

	dodoc AUTHORS BUGS COPYING* ChangeLog FAQ INSTALL *NEWS README \
		RESOURCES THANKS VERSION Y2K

	#Add rudimentary menu entry if gnome
	if use gnome; then
		insinto /usr/share/gnome/apps/Applications
		doins ${FILESDIR}/R.desktop
		insinto /usr/share/pixmaps
		doins ${FILESDIR}/R-logo.png
	fi

}