# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-visualization/gnuplot/gnuplot-4.2.2-r1.ebuild,v 1.13 2008/01/03 21:14:28 ranger Exp $

inherit eutils elisp-common multilib wxwidgets

MY_P="${P/_/.}"

DESCRIPTION="Command-line driven interactive plotting program"
HOMEPAGE="http://www.gnuplot.info/"
SRC_URI="mirror://sourceforge/gnuplot/${MY_P}.tar.gz"

LICENSE="gnuplot"
SLOT="0"
KEYWORDS="alpha amd64 hppa ia64 ppc ppc64 s390 sparc x86 ~x86-fbsd"
IUSE="doc emacs gd ggi latex pdf plotutils readline svga wxwindows X xemacs"
RESTRICT="wxwindows? ( test )"

RDEPEND="
	xemacs? ( virtual/xemacs app-xemacs/texinfo app-xemacs/xemacs-base )
	emacs? ( virtual/emacs !app-emacs/gnuplot-mode )
	pdf? ( media-libs/pdflib )
	ggi? ( media-libs/libggi )
	gd? ( >=media-libs/gd-2 )
	doc? ( virtual/latex-base )
	latex? ( virtual/latex-base )
	X? ( x11-libs/libXaw )
	svga? ( media-libs/svgalib )
	readline? ( >=sys-libs/readline-4.2 )
	plotutils? ( media-libs/plotutils )
	wxwindows? ( =x11-libs/wxGTK-2.6*
		>=x11-libs/cairo-0.9
		>=x11-libs/pango-1.10.3
		>=x11-libs/gtk+-2.8 )"
DEPEND="${RDEPEND}
	dev-util/pkgconfig"

S=${WORKDIR}/${MY_P}

E_SITEFILE="50gnuplot-gentoo.el"

latex_rehash() {
	if has_version '>=app-text/tetex-3' || has_version '>=app-text/ptex-3.1.8' || has_version 'app-text/texlive'; then
		texmf-update
	else
		texconfig rehash
	fi
}

pkg_setup() {
	if use gd && ! built_with_use media-libs/gd png; then
		eerror "media-libs/gd needs to be built with PNG support"
		die "please rebuilt media-libs/gd with USE=png"
	fi
}

src_unpack() {
	unpack ${A}
	cd "${S}"
	# not sane enough for upstream, but we will keep it
	epatch "${FILESDIR}"/${PN}-4.2.0-libggi.patch
	# Texinfo source is already shipped, so separate preparation not needed
	# and error-prone, see bug 194216
	epatch "${FILESDIR}"/${P}-disable_texi_generation.patch
}

src_compile() {
	# Prevent access violations, see bug 201871
	VARTEXFONTS="${T}/fonts"

	# See bug #156427.
	if use latex ; then
		sed -i \
			-e 's/TEXMFLOCAL/TEXMFSITE/g' share/LaTeX/Makefile.in || die "sed failed"
	else
		sed -i \
			-e '/^SUBDIRS/ s/LaTeX//' share/LaTeX/Makefile.in || die "sed failed"
	fi

	if use wxwindows ; then
		WX_GTK_VER="2.6"
		need-wxwidgets unicode
	fi

	local myconf="--with-gihdir=/usr/share/${PN}/gih"

	myconf="${myconf} $(use_with X x)"
	myconf="${myconf} $(use_with svga linux-vga)"
	myconf="${myconf} $(use_with gd)"
	myconf="${myconf} $(use_enable wxwindows wxwidgets)"
	myconf="${myconf} $(use_with plotutils plot /usr/$(get_libdir))"
	myconf="${myconf} $(use_with pdf pdf /usr/$(get_libdir))"

	use ggi \
		&& myconf="${myconf} --with-ggi=/usr/$(get_libdir)
		--with-xmi=/usr/$(get_libdir)" \
		|| myconf="${myconf} --without-ggi"

	use readline \
		&& myconf="${myconf} --with-readline=gnu --enable-history-file" \
		|| myconf="${myconf} --with-readline"

	myconf="${myconf} --without-lisp-files"

	# This is a hack to avoid sandbox violations when using the Linux console.
	# Creating the DVI and PDF tutorials require /dev/svga to build the
	# example plots.
	addwrite /dev/svga:/dev/mouse:/dev/tts/0

	TEMACS=no
	use xemacs && TEMACS=xemacs
	use emacs && TEMACS=emacs
	EMACS=${TEMACS} econf ${myconf} || die "econf failed"
	emake || die "emake failed"

	if use doc ; then
		cd docs
		emake pdf || die "pdf doc creation failed"
		cd ../tutorial
		emake pdf || die "pdf tutorial failed"
	fi
}

src_install () {
	emake DESTDIR="${D}" install || die "make install failed"

	if use emacs; then
		cd lisp
		einfo "Configuring gnuplot-mode for GNU Emacs..."
		EMACS="emacs" econf --with-lispdir="${SITELISP}/${PN}" || die "econf Emacs files faild"
		emake DESTDIR="${D}" install || die "make install Emacs files failed"
		emake clean
		cd ..

		# Gentoo emacs site-lisp configuration
		string="(add-to-list 'load-path \"/usr/share/emacs/site-lisp/${PN}\")"
		echo -e ";;; Gnuplot site-lisp configuration\n\n${string}\n" > ${E_SITEFILE}
		sed '/^;; move/,+4 d' lisp/dotemacs >> ${E_SITEFILE}
		elisp-site-file-install ${E_SITEFILE}
	fi

	if use xemacs; then
		cd lisp
		einfo "Configuring gnuplot-mode for XEmacs..."
		EMACS="xemacs" econf --with-lispdir="/usr/lib/xemacs/site-packages/${PN}" || die
		emake DESTDIR="${D}" install || die
		cd ..
	fi

	dodoc BUGS ChangeLog FAQ NEWS PATCHLEVEL PGPKEYS PORTING README* TODO VERSION

	if use doc; then
		# Demo files
		insinto /usr/share/${PN}/demo
		doins demo/*
		# Manual
		insinto /usr/share/doc/${PF}/manual
		doins docs/gnuplot.pdf
		# Tutorial
		insinto /usr/share/doc/${PF}/tutorial
		doins tutorial/{tutorial.dvi,tutorial.pdf}
		# Documentation for making PostScript files
		insinto /usr/share/doc/${PF}/psdoc
		doins docs/psdoc/{*.doc,*.tex,*.ps,*.gpi,README}
	fi

	if ! use X; then
		# see bug 194527
		rm -rf "${D}/usr/$(get_libdir)/X11"
	fi
}

pkg_postinst() {
	use emacs && elisp-site-regen
	if use svga ; then
		einfo "In order to enable ordinary users to use SVGA console graphics"
		einfo "gnuplot needs to be set up as setuid root.  Please note that"
		einfo "this is usually considered to be a security hazard."
		einfo "As root, manually \"chmod u+s /usr/bin/gnuplot\"."
	fi
	use latex && latex_rehash
}

pkg_postrm() {
	use emacs && elisp-site-regen
	use latex && latex_rehash
}