# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit eutils flag-o-matic

# Inner gnustep eclass, should only be inherited directly by gnustep-base
# packages
#
# maintainer: GNUstep Herd <gnustep@gentoo.org>

# IUSE variables across all GNUstep packages
# "debug": enable code for debugging
# "doc": build and install documentation, if available
IUSE="debug doc"

# packages needed to build any base gnustep package
GNUSTEP_CORE_DEPEND="virtual/libc
	doc? ( virtual/tetex =dev-tex/latex2html-2002* >=app-text/texi2html-1.64 )"

# Where to install GNUstep
GNUSTEP_PREFIX="${EPREFIX}/usr/GNUstep"

# GNUstep environment array
typeset -a GS_ENV

# Ebuild function overrides
gnustep-base_pkg_setup() {
	if test_version_info 3.3 ; then
		strip-unsupported-flags
	elif test_version_info 3.4 ; then
		# strict-aliasing is known to break obj-c stuff in gcc-3.4*
		filter-flags -fstrict-aliasing
	fi

	# known to break ObjC (bug 86089)
	filter-flags -fomit-frame-pointer
}

gnustep-base_src_unpack() {
	unpack ${A}
	cd "${S}"

	if [[ -f ./GNUmakefile ]] ; then
		# kill stupid includes that are simply overdone or useless on normal
		# Gentoo, but (may) cause major headaches on Prefixed Gentoo
		ebegin "Cleaning paths from GNUmakefile"
		sed -i \
			-e 's|-I/usr/X11R6/include||g' \
			-e 's|-I/usr/include||g' \
			-e 's|-L/usr/X11R6/lib||g' \
			-e 's|-L/usr/lib||g' \
			GNUmakefile
		eend $?
	fi
}

gnustep-base_src_compile() {
	egnustep_env
	if [[ -x ./configure ]] ; then
		econf || die "configure failed"
	fi
	egnustep_make
}

gnustep-base_src_install() {
	egnustep_env
	egnustep_install
	if use doc ; then
		egnustep_env
		egnustep_doc
	fi
	# Copies "convenience scripts"
	if [[ -f ${FILESDIR}/config-${PN}.sh ]] ; then
		dodir ${GNUSTEP_SYSTEM_TOOLS#${EPREFIX}}/Gentoo
		exeinto ${GNUSTEP_SYSTEM_TOOLS#${EPREFIX}}/Gentoo
		doexe "${FILESDIR}"/config-${PN}.sh
	fi
}

gnustep-base_pkg_postinst() {
	# Informs user about existence of "convenience script"
	if [[ -f ${FILESDIR}/config-${PN}.sh ]] ; then
		elog "Make sure to set happy defaults for this package by executing:"
		elog "  ${GNUSTEP_SYSTEM_TOOLS}/Gentoo/config-${PN}.sh"
		elog "as the user you will run the package as."
	fi
}

# Clean/reset an ebuild to the installed GNUstep environment
egnustep_env() {
	# Get additional variables
	GNUSTEP_SH_EXPORT_ALL_VARIABLES="true"

	if [[ -f ${GNUSTEP_PREFIX}/System/Library/Makefiles/GNUstep.sh ]] ; then
		# Reset GNUstep variables
		source "${GNUSTEP_PREFIX}"/System/Library/Makefiles/GNUstep-reset.sh
		source "${GNUSTEP_PREFIX}"/System/Library/Makefiles/GNUstep.sh

		# Needed to run installed GNUstep apps in sandbox
		addpredict "/root/GNUstep"

		# Set rpath in ldflags when available
		case ${CHOST} in
			*-linux-gnu|*-solaris*)
				append-ldflags \
					-Wl,-rpath="${GNUSTEP_SYSTEM_LIBRARIES}" \
					-L"${GNUSTEP_SYSTEM_LIBRARIES}"
			;;
			*)
				append-ldflags \
					-L"${GNUSTEP_SYSTEM_LIBRARIES}"
			;;
		esac

		# Set up env vars for make operations
		GS_ENV=( AUXILIARY_LDFLAGS="${LDFLAGS}" \
			DESTDIR="${D}" \
			HOME="${T}" \
			GNUSTEP_USER_DIR="${T}" \
			GNUSTEP_USER_DEFAULTS_DIR="${T}"/Defaults \
			GNUSTEP_INSTALLATION_DOMAIN=SYSTEM \
			TAR_OPTIONS="${TAR_OPTIONS} --no-same-owner" \
			messages=yes \
			-j1 )
			# -j1 is needed as gnustep-make is not parallel-safe

		if ! use debug ; then
			GS_ENV=( "${GS_ENV[@]}" "debug=no" )
		fi

		return 0
	fi
	die "gnustep-make not installed!"
}

# Make utilizing GNUstep Makefiles
egnustep_make() {
	if [[ -f ./[mM]akefile || -f ./GNUmakefile ]] ; then
		emake ${*} "${GS_ENV[@]}" all || die "package make failed"
		return 0
	fi
	die "no Makefile found"
}

# Make-install utilizing GNUstep Makefiles
egnustep_install() {
	# avoid problems due to our "weird" prefix, make sure it exists
	mkdir -p "${D}"${GNUSTEP_SYSTEM_TOOLS}
	if [[ -f ./[mM]akefile || -f ./GNUmakefile ]] ; then
		emake ${*} "${GS_ENV[@]}" install || die "package install failed"
		return 0
	fi
	die "no Makefile found"
}

# Make and install docs using GNUstep Makefiles
egnustep_doc() {
	if [[ -d ./Documentation ]] ; then
		# Check documentation presence
		cd "${S}"/Documentation
		if [[ -f ./[mM]akefile || -f ./GNUmakefile ]] ; then
			emake "${GS_ENV[@]}" all || die "doc make failed"
			emake "${GS_ENV[@]}" install || die "doc install failed"
		fi
		cd ..
	fi
}

EXPORT_FUNCTIONS pkg_setup src_unpack src_compile src_install pkg_postinst