# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-lang/erlang/erlang-11.2.1.ebuild,v 1.11 2007/01/31 14:28:59 genone Exp $

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

# NOTE: When bumping you need to adjust the *_VER strings in
#  src_install() to honour newer versions in the package (they
#  are maintained separately upstream).
#  As High Performance Erlang (HiPE) messes around a lot with
#  assembler, it breaks hardened and some normal systems, so it has
#  been disabled.  Try with newer versions though.
#  If you need symlinks for binaries please tell one of the
#  maintainersor open up a bug.

#erlang uses a really weird versioning scheme which caused quite a few problems already
#Thus we do a slight modification converting all letters to digits to make it more sane (see e.g. #26420)
#the next line selects the right source.
MY_PV="R$(get_major_version)B-$(get_version_component_range 3)"

# ATTN!! Take care when processing the C, etc version!
MY_P=otp_src_${MY_PV}

DESCRIPTION="Erlang programming language, runtime environment, and large collection of libraries"
HOMEPAGE="http://www.erlang.org/"
SRC_URI="http://www.erlang.org/download/${MY_P}.tar.gz
	doc? ( http://erlang.org/download/otp_doc_man_${MY_PV}.tar.gz
		http://erlang.org/download/otp_doc_html_${MY_PV}.tar.gz )"
# Not yet available for 11.2.1
#	http://developer.sipphone.com/ejabberd/erlang_epoll_patch/otp_src_${MY_PV}_epoll.patch"

LICENSE="EPL"
SLOT="0"
KEYWORDS="~alpha ~amd64 ppc sparc x86"
IUSE="doc emacs java odbc ssl tk"

RDEPEND=">=dev-lang/perl-5.6.1
	ssl? ( >=dev-libs/openssl-0.9.7d )
	emacs? ( virtual/emacs )
	java? ( >=virtual/jdk-1.2 )
	odbc? ( dev-db/unixODBC )"
DEPEND="${RDEPEND}
	tk? ( dev-lang/tk )"

S=${WORKDIR}/${MY_P}

SITEFILE=50erlang-gentoo.el

src_unpack() {
	## fix compilation on hardened systems, see bug #154338
	filter-flags "-fstack-protector"
	filter-flags "-fstack-protector-all"

	unpack ${A}
	cd "${S}"
	epatch "${FILESDIR}/${PN}-10.2.6-export-TARGET.patch"
	epatch "${FILESDIR}/10.2.6-manpage-emacs-gentoo.patch"
	use odbc || sed -i 's: odbc : :' lib/Makefile
#	epatch "${DISTDIR}"/otp_src_${MY_PV}_epoll.patch

	# bug 151612
	einfo "fixing hardcoded GLIBC_MINOR value dependency on signal handling (#151612)"
	sed -i "s/__GLIBC_MINOR__\ ==\ 3/__GLIBC_MINOR__\ \>=\ 3/g" \
	    ${S}/erts/emulator/hipe/hipe_x86_signal.c
}

src_compile() {
	use java || export JAVAC=false
	## disable High Performance Erlang (HiPE) to avoid a lot of
	## problems on hardened, bug #154338
	econf \
		--disable-hipe \
		--enable-threads \
		$(use_with ssl) \
		|| die
	make || die

	if use emacs ; then
		pushd lib/tools/emacs
		elisp-compile *.el
		popd
	fi
}

src_install() {
	local ERL_LIBDIR=/usr/$(get_libdir)/erlang
	local ERL_INTERFACE_VER=3.5.5.1
	local ERL_ERTS_VER=5.5.1

	make INSTALL_PREFIX="${D}" install || die
	dodoc AUTHORS EPLICENCE README

	dosym ${ERL_LIBDIR}/bin/erl /usr/bin/erl
	dosym ${ERL_LIBDIR}/bin/erlc /usr/bin/erlc
	dosym ${ERL_LIBDIR}/bin/ecc /usr/bin/ecc
	dosym ${ERL_LIBDIR}/bin/elink /usr/bin/elink
	dosym ${ERL_LIBDIR}/bin/ear /usr/bin/ear
	dosym ${ERL_LIBDIR}/bin/escript /usr/bin/escript
	dosym ${ERL_LIBDIR}/lib/erl_interface-${ERL_INTERFACE_VER}/bin/erl_call	/usr/bin/erl_call
	dosym ${ERL_LIBDIR}/erts-${ERL_ERTS_VER}/bin/beam /usr/bin/beam

	## Remove ${D} from the following files
	dosed ${ERL_LIBDIR}/bin/erl
	dosed ${ERL_LIBDIR}/bin/start
	cd "${D}"/${ERL_LIBDIR}/erts-${ERL_ERTS_VER}
	grep -rle "${D}" "${D}"/${ERL_LIBDIR}/erts-${ERL_ERTS_VER} | xargs sed -i -e "s:${D}::g"

	## Clean up the no longer needed files
	rm "${D}"/${ERL_LIBDIR}/Install

	if use doc ; then
		for file in "${WORKDIR}"/man/man*/*.[1-9]; do
			# Avoid namespace collisions
			local newfile=${file}erl
			cp $file $newfile
			# Man page processing tools expect a capitalized "SEE ALSO" section
			# header
			sed -i -e 's,\.SH See Also,\.SH SEE ALSO,g' $newfile
			doman ${newfile}
		done
		dohtml -A README,erl,hrl,c,h,kwc,info -r "${WORKDIR}"/doc "${WORKDIR}"/lib "${WORKDIR}"/erts-*
	fi

	if use emacs ; then
		pushd "${S}"
		elisp-install erlang lib/tools/emacs/*.{el,elc}
		elisp-site-file-install "${FILESDIR}"/${SITEFILE}
		popd
	fi
}

pkg_postinst() {
	use emacs && elisp-site-regen
	elog
	elog "If you need a symlink to one of erlang's binaries,"
	elog "please open a bug and tell the maintainers."
	elog
}

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