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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-haskell/haddock/haddock-2.9.2.ebuild,v 1.4 2012/09/14 07:03:20 qnikst Exp $

# ebuild generated by hackport 0.2.9

# haddock-2.8.{0,1} on hackage does not work with ghc-7.
# this ebuild uses a tarball of what's distributed with ghc-7.

EAPI="3"

CABAL_FEATURES="bin lib profile haddock hscolour"
inherit haskell-cabal pax-utils

DESCRIPTION="A documentation-generation tool for Haskell libraries"
HOMEPAGE="http://www.haskell.org/haddock/"
SRC_URI="mirror://hackage/packages/archive/${PN}/${PV}/${P}.tar.gz"

LICENSE="BSD"
SLOT="0"
# ia64 lost as we don't have ghc-7 there yet
# ppc64 needs to be rekeyworded due to xhtml not being keyworded
KEYWORDS="~alpha ~amd64 -ia64 ~ppc ~sparc ~x86 ~x86-fbsd"
IUSE=""

RDEPEND="dev-haskell/ghc-paths
		=dev-haskell/xhtml-3000.2*
		>=dev-lang/ghc-7"
DEPEND="${RDEPEND}
		>=dev-haskell/cabal-1.10 <dev-haskell/cabal-1.14"

CABAL_EXTRA_BUILD_FLAGS="--ghc-options=-rtsopts"

# although haddock depends on alex and happy to build from scratch, we don't
# want this ebuild to depend on those packages.
# we use haddock to build the documentation enabled by USE="doc".
# alex and happy only build executables, which does not require haddock.
# however, happy depends on mtl which can be build with USE="doc", which would
# create a circular dependency.
# haddock upstream solved this by bundling preprocessed files.
# unfortunately cabal has recently changed which directory it uses for these
# intermediate files and thus the solution does not work anymore.
# to fix this we move those preprocessed files back to the source tree.

src_prepare() {
	epatch "${FILESDIR}"/${P}-cabal-1.10.patch
	for f in Lex Parse; do
		rm "src/Haddock/$f."*
		mv "dist/build/haddock/haddock-tmp/Haddock/$f.hs" src/Haddock/
	done
}

src_configure() {
	# create a fake haddock executable. it'll set the right version to cabal
	# configure, but will eventually get overwritten in src_compile by
	# the real executable.
	local exe="${S}/dist/build/haddock/haddock"
	mkdir -p $(dirname "${exe}")
	echo -e "#!/bin/sh\necho Haddock version ${PV}" > "${exe}"
	chmod +x "${exe}"

	haskell-cabal_src_configure --with-haddock="${exe}"
}

src_compile() {
	# when building the (recursive..) haddock docs, change the datadir to the
	# current directory, as we're using haddock inplace even if it's built to be
	# installed into the system first.
	haddock_datadir="${S}" haskell-cabal_src_compile
}

src_install() {
	cabal_src_install
	# haddock uses GHC-api to process TH source.
	# TH requires GHCi which needs mmap('rwx') (bug #299709)
	pax-mark -m "${D}/usr/bin/${PN}"
}