# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-editors/emacs/emacs-23.4-r3.ebuild,v 1.14 2012/09/25 19:12:18 ulm Exp $

EAPI="5"
WANT_AUTOMAKE="none"

inherit autotools elisp-common eutils flag-o-matic multilib

DESCRIPTION="The extensible, customizable, self-documenting real-time display editor"
HOMEPAGE="http://www.gnu.org/software/emacs/"
SRC_URI="mirror://gnu/emacs/${P}.tar.bz2
	mirror://gentoo/${P}-patches-6.tar.bz2"

LICENSE="GPL-3+ FDL-1.3+ BSD HPND MIT W3C unicode PSF-2"
SLOT="23"
KEYWORDS="~alpha amd64 arm hppa ~ia64 ~mips ppc ppc64 ~s390 ~sh ~sparc x86 ~amd64-fbsd ~x86-fbsd ~x86-freebsd ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos ~sparc-solaris ~x86-solaris"
IUSE="alsa aqua athena dbus games gconf gif gpm gtk gzip-el hesiod jpeg kerberos livecd m17n-lib motif pax_kernel png sound source svg tiff toolkit-scroll-bars X Xaw3d xft +xpm"
REQUIRED_USE="aqua? ( !X )"

RDEPEND="sys-libs/ncurses
	>=app-admin/eselect-emacs-1.2
	>=app-emacs/emacs-common-gentoo-1.3-r3[games?,X?]
	net-libs/liblockfile
	hesiod? ( net-dns/hesiod )
	kerberos? ( virtual/krb5 )
	alsa? ( media-libs/alsa-lib )
	gpm? ( sys-libs/gpm )
	dbus? ( sys-apps/dbus )
	X? (
		x11-libs/libXmu
		x11-libs/libXt
		x11-misc/xbitmaps
		gconf? ( >=gnome-base/gconf-2.26.2 )
		gif? ( media-libs/giflib )
		jpeg? ( virtual/jpeg )
		png? ( >=media-libs/libpng-1.4:0= )
		svg? ( >=gnome-base/librsvg-2.0 )
		tiff? ( media-libs/tiff )
		xpm? ( x11-libs/libXpm )
		xft? (
			media-libs/fontconfig
			media-libs/freetype
			x11-libs/libXft
			m17n-lib? (
				>=dev-libs/libotf-0.9.4
				>=dev-libs/m17n-lib-1.5.1
			)
		)
		gtk? ( x11-libs/gtk+:2 )
		!gtk? (
			Xaw3d? ( x11-libs/libXaw3d )
			!Xaw3d? (
				athena? ( x11-libs/libXaw )
				!athena? ( motif? ( >=x11-libs/openmotif-2.3:0 ) )
			)
		)
	)"

DEPEND="${RDEPEND}
	alsa? ( virtual/pkgconfig )
	dbus? ( virtual/pkgconfig )
	X? ( virtual/pkgconfig )
	gzip-el? ( app-arch/gzip )
	pax_kernel? ( sys-apps/paxctl )"

RDEPEND="${RDEPEND}
	!/site-lisp dir
	rm -rf "${ED}"/usr/share/emacs/${FULL_VERSION}/site-lisp

	local c=";;"
	if use source; then
		insinto /usr/share/emacs/${FULL_VERSION}/src
		# This is not meant to install all the source -- just the
		# C source you might find via find-function
		doins src/*.{c,h,m}
		doins -r src/{m,s}
		rm "${ED}"/usr/share/emacs/${FULL_VERSION}/src/Makefile.c
		rm "${ED}"/usr/share/emacs/${FULL_VERSION}/src/{m,s}/README
		c=""
	fi

	sed 's/^X//' >"${T}/${SITEFILE}" <<-EOF
	X
	;;; ${PN}-${SLOT} site-lisp configuration
	X
	(when (string-match "\\\\\`${FULL_VERSION//./\\\\.}\\\\>" emacs-version)
	X  ${c}(setq find-function-C-source-directory
	X  ${c}      "${EPREFIX}/usr/share/emacs/${FULL_VERSION}/src")
	X  (let ((path (getenv "INFOPATH"))
	X	(dir "${EPREFIX}/usr/share/info/${EMACS_SUFFIX}")
	X	(re "\\\\\`${EPREFIX}/usr/share/info\\\\>"))
	X    (and path
	X	 ;; move Emacs Info dir before anything else in /usr/share/info
	X	 (let* ((p (cons nil (split-string path ":" t))) (q p))
	X	   (while (and (cdr q) (not (string-match re (cadr q))))
	X	     (setq q (cdr q)))
	X	   (setcdr q (cons dir (delete dir (cdr q))))
	X	   (setq Info-directory-list (prune-directory-list (cdr p)))))))
	EOF
	elisp-site-file-install "${T}/${SITEFILE}" || die

	dodoc README BUGS

	if use aqua; then
		dodir /Applications/Gentoo
		rm -rf "${ED}"/Applications/Gentoo/Emacs${EMACS_SUFFIX#emacs}.app
		mv nextstep/Emacs.app \
			"${ED}"/Applications/Gentoo/Emacs${EMACS_SUFFIX#emacs}.app || die
		elog "Emacs${EMACS_SUFFIX#emacs}.app is in ${EPREFIX}/Applications/Gentoo."
		elog "You may want to copy or symlink it into /Applications by yourself."
	fi
}

pkg_preinst() {
	# move Info dir file to correct name
	local infodir=/usr/share/info/${EMACS_SUFFIX} f
	if [[ -f ${ED}${infodir}/dir.orig ]]; then
		mv "${ED}"${infodir}/dir{.orig,} || die "moving info dir failed"
	elif [[ -d "${ED}"${infodir} ]]; then
		# this should not happen in EAPI 4
		ewarn "Regenerating Info directory index in ${infodir} ..."
		rm -f "${ED}"${infodir}/dir{,.*}
		for f in "${ED}"${infodir}/*; do
			if [[ ${f##*/} != *-[0-9]* && -e ${f} ]]; then
				install-info --info-dir="${ED}"${infodir} "${f}" \
					|| die "install-info failed"
			fi
		done
	fi
}

pkg_postinst() {
	elisp-site-regen

	if use livecd; then
		# force an update of the emacs symlink for the livecd/dvd,
		# because some microemacs packages set it with USE=livecd
		eselect emacs update
	else
		eselect emacs update ifunset
	fi

	if use X; then
		elog "You need to install some fonts for Emacs."
		elog "Installing media-fonts/font-adobe-{75,100}dpi on the X server's"
		elog "machine would satisfy basic Emacs requirements under X11."
		elog "See also http://www.gentoo.org/proj/en/lisp/emacs/xft.xml"
		elog "for how to enable anti-aliased fonts."
		elog
	fi

	elog "You can set the version to be started by /usr/bin/emacs through"
	elog "the Emacs eselect module, which also redirects man and info pages."
	elog "Therefore, several Emacs versions can be installed at the same time."
	elog "\"man emacs.eselect\" for details."
	elog
	elog "If you upgrade from a previous major version of Emacs, then it is"
	elog "strongly recommended that you use app-admin/emacs-updater to rebuild"
	elog "all byte-compiled elisp files of the installed Emacs packages."
}

pkg_postrm() {
	elisp-site-regen
	eselect emacs update ifunset
}