# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-misc/screen/screen-4.0.2-r4.ebuild,v 1.19 2006/03/30 18:30:47 flameeyes Exp $

inherit eutils flag-o-matic toolchain-funcs pam

DESCRIPTION="Screen is a full-screen window manager that multiplexes a physical terminal between several processes"
HOMEPAGE="http://www.gnu.org/software/screen/"
SRC_URI="mirror://gnu/screen/${P}.tar.gz"

LICENSE="GPL-2"
SLOT="0"
KEYWORDS="alpha amd64 arm hppa ia64 mips ppc ppc64 s390 sh sparc x86 ~x86-fbsd"
IUSE="debug nethack pam selinux"

RDEPEND=">=sys-libs/ncurses-5.2
	pam? ( virtual/pam )
	selinux? (
		sec-policy/selinux-screen
		>=sec-policy/selinux-base-policy-20050821
	)"
DEPEND="${RDEPEND}
	>=sys-devel/autoconf-2.58"

pkg_setup() {
	# Make sure utmp group exists, as it's used later on.
	enewgroup utmp 406
}

src_unpack() {
	unpack ${A}
	cd "${S}"

	# Bug 34599: integer overflow in 4.0.1
	# (Nov 29 2003 -solar)
	epatch "${FILESDIR}"/screen-4.0.1-int-overflow-fix.patch

	# Bug 31070: configure problem which affects alpha
	# (13 Jan 2004 agriffis)
	epatch "${FILESDIR}"/screen-4.0.1-vsprintf.patch

	# uclibc doesnt have sys/stropts.h
	if ! (echo '#include <sys/stropts.h>' | $(tc-getCC) -E - >& /dev/null) ; then
		epatch "${FILESDIR}"/${PV}-no-pty.patch
	fi

	# Don't use utempter even if it is found on the system
	epatch "${FILESDIR}"/${PV}-no-utempter.patch

	# Don't link against libelf even if it is found on the system
	epatch "${FILESDIR}"/${PV}-no-libelf.patch

	# Patch for time function on 64bit systems
	epatch "${FILESDIR}"/${PV}-64bit-time.patch

	# Patch that makes %u work for windowlist -b formats
	epatch "${FILESDIR}"/${PV}-windowlist-multiuser-fix.patch

	# Fix manpage.
	sed -i \
		-e "s:/usr/local/etc/screenrc:/etc/screenrc:g" \
		-e "s:/usr/local/screens:/var/run/screen:g" \
		-e "s:/local/etc/screenrc:/etc/screenrc:g" \
		-e "s:/etc/utmp:/var/run/utmp:g" \
		-e "s:/local/screens/S-:/var/run/screen/S-:g" \
		doc/screen.1 \
		|| die "sed doc/screen.1 failed"

	# configure as delivered with screen is made with autoconf-2.5
	WANT_AUTOCONF=2.5 autoconf || die "autoconf failed"
}

src_compile() {
	addpredict "$(tty)"
	addpredict "${SSH_TTY}"

	# check config.h for other settings such as the
	# max-number of windows allowed by screen.
	append-flags "-DPTYMODE=0620 -DPTYGROUP=5"
	append-ldflags $(bindnow-flags)

	use pam && append-flags "-DUSE_PAM"
	use nethack || append-flags "-DNONETHACK"
	use debug && append-flags "-DDEBUG"

	econf \
		--with-socket-dir=/var/run/screen \
		--with-sys-screenrc=/etc/screenrc \
		--enable-rxvt_osc \
		--enable-telnet \
		--enable-colors256 \
		$(use_enable pam) \
		|| die "econf failed"

	# Second try to fix bug 12683, this time without changing term.h
	# The last try seemed to break screen at run-time.
	# (16 Jan 2003 agriffis)
	LC_ALL=POSIX make term.h || die "Failed making term.h"

	emake || die "emake failed"
}

src_install() {
	dobin screen || die "dobin failed"
	keepdir /var/run/screen || die "keepdir failed"
	fowners root:utmp /{usr/bin,var/run}/screen || die "fowners failed"
	fperms 2755 /usr/bin/screen || die "fperms failed"

	insinto /usr/share/terminfo
	doins terminfo/screencap || die "doins failed"
	insinto /usr/share/screen/utf8encodings
	doins utf8encodings/?? || die "doins failed"
	insinto /etc
	doins "${FILESDIR}"/screenrc || die "doins failed"

	pamd_mimic_system screen auth || die "pamd_mimic_system failed"

	dodoc \
		README ChangeLog INSTALL TODO NEWS* patchlevel.h \
		doc/{FAQ,README.DOTSCREEN,fdpat.ps,window_to_display.ps} \
		|| die "dodoc failed"

	doman doc/screen.1 || die "doman failed"
	doinfo doc/screen.info* || die "doinfo failed"
}

pkg_postinst() {
	chmod 0775 "${ROOT}"/var/run/screen

	einfo "Some dangerous key bindings have been removed or changed to more safe values."
	einfo "For more info, please check /etc/screenrc"
	einfo
	einfo "screen is not installed as setuid root, which effectively disables multi-user"
	einfo "mode. To enable it, run:"
	einfo
	einfo "\tchmod u+s /usr/bin/screen"
	einfo "\tchmod go-w /var/run/screen"
}