# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-cluster/pvm/pvm-3.4.5-r3.ebuild,v 1.3 2008/03/25 16:14:20 mr_bones_ Exp $

inherit eutils multilib flag-o-matic toolchain-funcs

MY_P="${P/-}"
DESCRIPTION="PVM: Parallel Virtual Machine"
HOMEPAGE="http://www.epm.ornl.gov/pvm/pvm_home.html"
SRC_URI="ftp://ftp.netlib.org/pvm3/${MY_P}.tgz "
IUSE="crypt"
DEPEND=""
RDEPEND="virtual/libc"
SLOT="0"
LICENSE="as-is"
KEYWORDS="~amd64 ~ia64 ~ppc ~ppc64 ~sparc ~x86"
S="${WORKDIR}/${MY_P%%.*}"

src_unpack() {
	unpack ${A}
	cd "${S}"
	# Patches from Red Hat
	epatch "${FILESDIR}"/${P}-envvars.patch || die
	epatch "${FILESDIR}"/${P}-strerror.patch || die
	epatch "${FILESDIR}"/${P}-extra-arches.patch || die
	epatch "${FILESDIR}"/${P}-x86_64-segfault.patch || die
	epatch "${FILESDIR}"/${P}-gcc-4.1.patch || die
	epatch "${FILESDIR}"/${P}-bug_147337.patch || die

# setup def files for other archs
	cp conf/LINUX64.def conf/LINUXPPC64.def
	cp conf/LINUX64.m4 conf/LINUXPPC64.m4

	epatch "${FILESDIR}"/${P}-ppc64.patch || die
	epatch "${FILESDIR}"/${P}-respect-cflags.patch || die

# s390 should go in this list if there is ever interest
# Patch the 64bit def files to look in lib64 dirs as well for libraries.
	for I in 64 PPC64; do
		sed -i -e "s|ARCHDLIB	=|ARCHDLIB	= -L/usr/lib64 -L/usr/X11R6/lib64 |" conf/LINUX${I}.def || die "Failed to fix 64-bit"
		sed -i -e "s|ARCHLIB	=|ARCHLIB	= -L/usr/lib64 -L/usr/X11R6/lib64 |" conf/LINUX${I}.def || die "Failed to fix 64-bit"
	done

	if use crypt; then
		for i in "${S}"/conf/LINUX*def; do
			sed -i.orig -e '/^ARCHCFLAGS/s~/usr/bin/rsh~/usr/bin/ssh~' "${i}" ||
			die "Failed to set ssh instead of rsh"
		done
	fi

}

src_compile() {
	unset PVM_ARCH

	export PVM_ROOT="${S}"

	# libpvm3.a needs to be PIC so other apps can link against it. The
	# build system sucks, so it's a huge pain to try to make only the
	# library PIC.
	if [[ $(get_libdir) = lib64 ]]; then
		append-flags -fPIC
	fi

	emake \
		CC=$(tc-getCC) \
		CFLOPTS="${CFLAGS}" \
		|| die
}

src_install() {
	dodir /usr/share/man
	rm man/man1 -fr
	mv man/man3 "${D}"/usr/share/man/

	dodoc Readme

	#installs the rest of pvm
	dodir /usr/share/pvm3
	cp -r * "${D}"/usr/share/pvm3
	dodir /usr/bin

	# (#132711) Symlink to the right spot on multilib systems
	local linuxdir
	if [[ $(get_libdir) = lib64 ]]; then
		linuxdir="LINUX64"
	else
		linuxdir="LINUX"
	fi
	ln -s /usr/share/pvm3/lib/${linuxdir}/pvm "${D}"/usr/bin/pvm
	ln -s /usr/share/pvm3/lib/${linuxdir}/pvmd3 "${D}"/usr/bin/pvmd3
	ln -s /usr/share/pvm3/lib/${linuxdir}/pvmgs "${D}"/usr/bin/pvmgs

	#environment variables:
	echo PVM_ROOT=/usr/share/pvm3 > "${T}"/98pvm
	echo PVM_ARCH=$("${D}"/usr/share/pvm3/lib/pvmgetarch) >> "${T}"/98pvm
	doenvd "${T}"/98pvm
}

pkg_postinst() {
	ewarn "Environment variables have changed. Do not forget to run etc-update,"
	ewarn "reboot or perform . /etc/profile before using pvm!"
}