eclass/gnatbuild.eclass - mirrors/cros/chromiumos/overlays/portage-stable - Git at Google

 # Copyright 1999-2006 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/eclass/gnatbuild.eclass,v 1.50 2010/01/22 13:27:36 george Exp $
 #
 # Author: George Shapovalov <george@gentoo.org>
 # Belongs to: ada herd <ada@gentoo.org>
 #
 # Notes:
 #  HOMEPAGE and LICENSE are set in appropriate ebuild, as
 #  gnat is developed by FSF and AdaCore "in parallel"
 #
 # The following vars can be set in ebuild before inheriting this eclass. They
 # will be respected:
 #  SLOT
 #  BOOT_SLOT - where old bootstrap is used as it works fine


 inherit eutils versionator toolchain-funcs flag-o-matic multilib autotools \
 	libtool fixheadtails gnuconfig pax-utils

 EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_postrm src_unpack src_compile src_install

 DESCRIPTION="Based on the ${ECLASS} eclass"

 IUSE="nls"
 # multilib is supported via profiles now, multilib usevar is deprecated

 DEPEND=">=app-admin/eselect-gnat-1.3"
 RDEPEND="app-admin/eselect-gnat"

 # Note!
 # It may not be safe to source this at top level. Only source inside local
 # functions!
 GnatCommon="/usr/share/gnat/lib/gnat-common.bash"

 #---->> globals and SLOT <<----

 # just a check, this location seems to vary too much, easier to track it in
 # ebuild
 #[ -z "${GNATSOURCE}" ] && die "please set GNATSOURCE in ebuild! (before inherit)"

 # versioning
 # because of gnatpro/gnatgpl we need to track both gcc and gnat versions

 # these simply default to $PV
 GNATMAJOR=$(get_version_component_range 1)
 GNATMINOR=$(get_version_component_range 2)
 GNATBRANCH=$(get_version_component_range 1-2)
 GNATRELEASE=$(get_version_component_range 1-3)
 # this one is for the gnat-gpl which is versioned by gcc backend and ACT version
 # number added on top
 ACT_Ver=$(get_version_component_range 4)

 # GCCVER and SLOT logic
 #
 # I better define vars for package names, as there was discussion on proper
 # naming and it may change
 PN_GnatGCC="gnat-gcc"
 PN_GnatGpl="gnat-gpl"

 # ATTN! GCCVER stands for the provided backend gcc, not the one on the system
 # so tc-* functions are of no use here. The present versioning scheme makes
 # GCCVER basically a part of PV, but *this may change*!!
 #
 # GCCVER can be set in the ebuild.
 [[ -z ${GCCVER} ]] && GCCVER="${GNATRELEASE}"


 # finally extract GCC version strings
 GCCMAJOR=$(get_version_component_range 1 "${GCCVER}")
 GCCMINOR=$(get_version_component_range 2 "${GCCVER}")
 GCCBRANCH=$(get_version_component_range 1-2 "${GCCVER}")
 GCCRELEASE=$(get_version_component_range 1-3 "${GCCVER}")

 # SLOT logic, make it represent gcc backend, as this is what matters most
 # There are some special cases, so we allow it to be defined in the ebuild
 # ATTN!! If you set SLOT in the ebuild, don't forget to make sure that
 # BOOT_SLOT is also set properly!
 [[ -z ${SLOT} ]] && SLOT="${GCCBRANCH}"

 # possible future crosscompilation support
 export CTARGET=${CTARGET:-${CHOST}}

 is_crosscompile() {
 	[[ ${CHOST} != ${CTARGET} ]]
 }

 # Bootstrap CTARGET and SLOT logic. For now BOOT_TARGET=CHOST is "guaranteed" by
 # profiles, so mostly watch out for the right SLOT used in the bootstrap.
 # As above, with SLOT, it may need to be defined in the ebuild
 BOOT_TARGET=${CTARGET}
 [[ -z ${BOOT_SLOT} ]] && BOOT_SLOT=${SLOT}

 # set our install locations
 PREFIX=${GNATBUILD_PREFIX:-/usr} # not sure we need this hook, but may be..
 LIBPATH=${PREFIX}/$(get_libdir)/${PN}/${CTARGET}/${SLOT}
 LIBEXECPATH=${PREFIX}/libexec/${PN}/${CTARGET}/${SLOT}
 INCLUDEPATH=${LIBPATH}/include
 BINPATH=${PREFIX}/${CTARGET}/${PN}-bin/${SLOT}
 DATAPATH=${PREFIX}/share/${PN}-data/${CTARGET}/${SLOT}
 # ATTN! the one below should match the path defined in eselect-gnat module
 CONFIG_PATH="/usr/share/gnat/eselect"
 gnat_profile="${CTARGET}-${PN}-${SLOT}"
 gnat_config_file="${CONFIG_PATH}/${gnat_profile}"


 # ebuild globals
 if [[ ${PN} == "${PN_GnatPro}" ]] && [[ ${GNATMAJOR} == "3" ]]; then
 		DEPEND="x86? ( >=app-shells/tcsh-6.0 )"
 fi
 S="${WORKDIR}/gcc-${GCCVER}"

 # bootstrap globals, common to src_unpack and src_compile
 GNATBOOT="${WORKDIR}/usr"
 GNATBUILD="${WORKDIR}/build"

 # necessary for detecting lib locations and creating env.d entry
 #XGCC="${GNATBUILD}/gcc/xgcc -B${GNATBUILD}/gcc"

 #----<< globals and SLOT >>----

 # set SRC_URI's in ebuilds for now

 #----<< support checks >>----
 # skipping this section - do not care about hardened/multilib for now

 #---->> specs + env.d logic <<----
 # TODO!!!
 # set MANPATH, etc..
 #----<< specs + env.d logic >>----


 #---->> some helper functions <<----
 is_multilib() {
 	[[ ${GCCMAJOR} < 3 ]] && return 1
 	case ${CTARGET} in
 		mips64*|powerpc64*|s390x*|sparc64*|x86_64*)
 			has_multilib_profile || use multilib ;;
 		*)  false ;;
 	esac
 }

 # adapted from toolchain,
 # left only basic multilib functionality and cut off mips stuff

 create_specs_file() {
 	einfo "Creating a vanilla gcc specs file"
 	"${WORKDIR}"/build/gcc/xgcc -dumpspecs > "${WORKDIR}"/build/vanilla.specs
 }


 # eselect stuff taken straight from toolchain.eclass and greatly simplified
 add_profile_eselect_conf() {
 	local gnat_config_file=$1
 	local abi=$2
 	local var

 	echo >> "${D}/${gnat_config_file}"
 	if ! is_multilib ; then
 		echo "  ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
 	else
 		echo "[${abi}]" >> "${D}/${gnat_config_file}"
 		var="CTARGET_${abi}"
 		if [[ -n ${!var} ]] ; then
 			echo "  ctarget=${!var}" >> "${D}/${gnat_config_file}"
 		else
 			var="CHOST_${abi}"
 			if [[ -n ${!var} ]] ; then
 				echo "  ctarget=${!var}" >> "${D}/${gnat_config_file}"
 			else
 				echo "  ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
 			fi
 		fi
 	fi

 	var="CFLAGS_${abi}"
 	if [[ -n ${!var} ]] ; then
 		echo "  cflags=${!var}" >> "${D}/${gnat_config_file}"
 	fi
 }


 create_eselect_conf() {
 	local abi

 	dodir ${CONFIG_PATH}

 	echo "[global]" > "${D}/${gnat_config_file}"
 	echo "  version=${CTARGET}-${SLOT}" >> "${D}/${gnat_config_file}"
 	echo "  binpath=${BINPATH}" >> "${D}/${gnat_config_file}"
 	echo "  libexecpath=${LIBEXECPATH}" >> "${D}/${gnat_config_file}"
 	echo "  ldpath=${LIBPATH}" >> "${D}/${gnat_config_file}"
 	echo "  manpath=${DATAPATH}/man" >> "${D}/${gnat_config_file}"
 	echo "  infopath=${DATAPATH}/info" >> "${D}/${gnat_config_file}"
 	echo "  bin_prefix=${CTARGET}" >> "${D}/${gnat_config_file}"

 	for abi in $(get_all_abis) ; do
 		add_profile_eselect_conf "${D}/${gnat_config_file}" "${abi}"
 	done
 }


 should_we_eselect_gnat() {
 	# we only want to switch compilers if installing to / or /tmp/stage1root
 	[[ ${ROOT} == "/" ]] || return 1

 	# if the current config is invalid, we definitely want a new one
 	# Note: due to bash quirkiness, the following must not be 1 line
 	local curr_config
 	curr_config=$(eselect --no-color gnat show | grep ${CTARGET} | awk '{ print $1 }') || return 0
 	[[ -z ${curr_config} ]] && return 0

 	# The logic is basically "try to keep the same profile if possible"

 	if [[ ${curr_config} == ${CTARGET}-${PN}-${SLOT} ]] ; then
 		return 0
 	else
 		elog "The current gcc config appears valid, so it will not be"
 		elog "automatically switched for you.  If you would like to"
 		elog "switch to the newly installed gcc version, do the"
 		elog "following:"
 		echo
 		elog "eselect gnat set <profile>"
 		echo
 		ebeep
 		return 1
 	fi
 }

 # active compiler selection, called from pkg_postinst
 do_gnat_config() {
 	eselect gnat set ${CTARGET}-${PN}-${SLOT} &> /dev/null

 	elog "The following gnat profile has been activated:"
 	elog "${CTARGET}-${PN}-${SLOT}"
 	elog ""
 	elog "The compiler has been installed as gnatgcc, and the coverage testing"
 	elog "tool as gnatgcov."
 	elog ""
 	elog "Ada handling in Gentoo allows you to have multiple gnat variants"
 	elog "installed in parallel and automatically manage Ada libs."
 	elog "Please take a look at the Ada project page for some documentation:"
 	elog "http://www.gentoo.org/proj/en/prog_lang/ada/index.xml"
 }


 # Taken straight from the toolchain.eclass. Only removed the "obsolete hunk"
 #
 # The purpose of this DISGUSTING gcc multilib hack is to allow 64bit libs
 # to live in lib instead of lib64 where they belong, with 32bit libraries
 # in lib32. This hack has been around since the beginning of the amd64 port,
 # and we're only now starting to fix everything that's broken. Eventually
 # this should go away.
 #
 # Travis Tilley <lv@gentoo.org> (03 Sep 2004)
 #
 disgusting_gcc_multilib_HACK() {
 	local config
 	local libdirs
 	if has_multilib_profile ; then
 		case $(tc-arch) in
 			amd64)
 				config="i386/t-linux64"
 				libdirs="../$(get_abi_LIBDIR amd64) ../$(get_abi_LIBDIR x86)" \
 			;;
 			ppc64)
 				config="rs6000/t-linux64"
 				libdirs="../$(get_abi_LIBDIR ppc64) ../$(get_abi_LIBDIR ppc)" \
 			;;
 		esac
 	else
 		die "Your profile is no longer supported by portage."
 	fi

 	einfo "updating multilib directories to be: ${libdirs}"
 	sed -i -e "s:^MULTILIB_OSDIRNAMES.*:MULTILIB_OSDIRNAMES = ${libdirs}:" "${S}"/gcc/config/${config}
 }


 #---->> pkg_* <<----
 gnatbuild_pkg_setup() {
 	debug-print-function ${FUNCNAME} $@

 	# Setup variables which would normally be in the profile
 	if is_crosscompile ; then
 		multilib_env ${CTARGET}
 	fi

 	# we dont want to use the installed compiler's specs to build gnat!
 	unset GCC_SPECS
 }

 gnatbuild_pkg_postinst() {
 	if should_we_eselect_gnat; then
 		do_gnat_config
 	else
 		eselect gnat update
 	fi

 	# if primary compiler list is empty, add this profile to the list, so
 	# that users are not left without active compilers (making sure that
 	# libs are getting built for at least one)
 	elog
 	. ${GnatCommon} || die "failed to source common code"
 	if [[ ! -f ${PRIMELIST} ]] || [[ ! -s ${PRIMELIST} ]]; then
 		echo "${gnat_profile}" > ${PRIMELIST}
 		elog "The list of primary compilers was empty and got assigned ${gnat_profile}."
 	fi
 	elog "Please edit ${PRIMELIST} and list there gnat profiles intended"
 	elog "for common use."
 }


 gnatbuild_pkg_postrm() {
 	# "eselect gnat update" now removes the env.d file if the corresponding
 	# gnat profile was unmerged
 	eselect gnat update
 	elog "If you just unmerged the last gnat in this SLOT, your active gnat"
 	elog "profile got unset. Please check what eselect gnat show tells you"
 	elog "and set the desired profile"
 }
 #---->> pkg_* <<----

 #---->> src_* <<----

 # common unpack stuff
 gnatbuild_src_unpack() {
 	debug-print-function ${FUNCNAME} $@
 	[ -z "$1" ] &&  gnatbuild_src_unpack all

 	while [ "$1" ]; do
 	case $1 in
 		base_unpack)
 			unpack ${A}
 			pax-mark E $(find ${GNATBOOT} -name gnat1)

 			cd "${S}"
 			# patching gcc sources, following the toolchain
 			if [[ -d "${FILESDIR}"/${SLOT} ]] ; then
 				EPATCH_MULTI_MSG="Applying Gentoo patches ..." \
 				epatch "${FILESDIR}"/${SLOT}/*.patch
 			fi
 			# Replacing obsolete head/tail with POSIX compliant ones
 			ht_fix_file */configure

 			if ! is_crosscompile && is_multilib && \
 				[[ ( $(tc-arch) == "amd64" || $(tc-arch) == "ppc64" ) && -z ${SKIP_MULTILIB_HACK} ]] ; then
 					disgusting_gcc_multilib_HACK || die "multilib hack failed"
 			fi

 			# Fixup libtool to correctly generate .la files with portage
 			cd "${S}"
 			elibtoolize --portage --shallow --no-uclibc

 			gnuconfig_update
 			# update configure files
 			einfo "Fixing misc issues in configure files"
 			for f in $(grep -l 'autoconf version 2.13' $(find "${S}" -name configure)) ; do
 				ebegin "  Updating ${f}"
 				patch "${f}" "${FILESDIR}"/gcc-configure-LANG.patch >& "${T}"/configure-patch.log \
 					|| eerror "Please file a bug about this"
 				eend $?
 			done

 #			this is only needed for gnat-gpl-4.1 and breaks for gnat-gcc, so
 #			this block was moved to corresponding ebuild
 #			pushd "${S}"/gnattools &> /dev/null
 #				eautoconf
 #			popd &> /dev/null
 		;;

 		common_prep)
 			# Prepare the gcc source directory
 			cd "${S}/gcc"
 			touch cstamp-h.in
 			touch ada/[es]info.h
 			touch ada/nmake.ad[bs]
 			# set the compiler name to gnatgcc
 			for i in `find ada/ -name '*.ad[sb]'`; do \
 				sed -i -e "s/\"gcc\"/\"gnatgcc\"/g" ${i}; \
 			done
 			# add -fPIC flag to shared libs for 3.4* backend
 			if [ "3.4" == "${GCCBRANCH}" ] ; then
 				cd ada
 				epatch "${FILESDIR}"/gnat-Make-lang.in.patch
 			fi

 			# gcc sources as of 4.3 seem to have a common omission of $(DESTDIR),
 			# that leads to make install trying to rm -f file on live system.
 			# As we do not need this rm, we simply remove the whole line
 			sed -i -e "/\$(RM) \$(bindir)/d" "${S}"/gcc/ada/Make-lang.in

 			mkdir -p "${GNATBUILD}"
 		;;

 		all)
 			gnatbuild_src_unpack base_unpack common_prep
 		;;
 	esac
 	shift
 	done
 }

 # it would be nice to split configure and make steps
 # but both need to operate inside specially tuned evironment
 # so just do sections for now (as in eclass section of handbook)
 # sections are: configure, make-tools, bootstrap,
 #  gnatlib_and_tools, gnatlib-shared
 gnatbuild_src_compile() {
 	debug-print-function ${FUNCNAME} $@
 	if [[ -z "$1" ]]; then
 		gnatbuild_src_compile all
 		return $?
 	fi

 	if [[ "all" == "$1" ]]
 	then # specialcasing "all" to avoid scanning sources unnecessarily
 		gnatbuild_src_compile configure make-tools \
 			bootstrap gnatlib_and_tools gnatlib-shared

 	else
 		# Set some paths to our bootstrap compiler.
 		export PATH="${GNATBOOT}/bin:${PATH}"
 		# !ATTN! the bootstrap compilers have a very simplystic structure,
 		# so many paths are not identical to the installed ones.
 		# Plus it was simplified even more in new releases.
 		if [[ ${BOOT_SLOT} > 4.1 ]] ; then
 			GNATLIB="${GNATBOOT}/lib"
 		else
 			GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"
 		fi

 		export CC="${GNATBOOT}/bin/gnatgcc"
 		export INCLUDE_DIR="${GNATLIB}/include"
 		export LIB_DIR="${GNATLIB}"
 		export LDFLAGS="-L${GNATLIB}"

 		# additional vars from gnuada and elsewhere
 		#export LD_RUN_PATH="${LIBPATH}"
 		export LIBRARY_PATH="${GNATLIB}"
 		#export LD_LIBRARY_PATH="${GNATLIB}"
 #		export COMPILER_PATH="${GNATBOOT}/bin/"

 		export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
 		export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

 #		einfo "CC=${CC},
 #			ADA_INCLUDE_PATH=${ADA_INCLUDE_PATH},
 #			LDFLAGS=${LDFLAGS},
 #			PATH=${PATH}"

 		while [ "$1" ]; do
 		case $1 in
 			configure)
 				debug-print-section configure
 				# Configure gcc
 				local confgcc

 				# some cross-compile logic from toolchain
 				confgcc="${confgcc} --host=${CHOST}"
 				if is_crosscompile || tc-is-cross-compiler ; then
 					confgcc="${confgcc} --target=${CTARGET}"
 				fi
 				[[ -n ${CBUILD} ]] && confgcc="${confgcc} --build=${CBUILD}"

 				# Native Language Support
 				if use nls ; then
 					confgcc="${confgcc} --enable-nls --without-included-gettext"
 				else
 					confgcc="${confgcc} --disable-nls"
 				fi

 				# reasonably sane globals (from toolchain)
 				confgcc="${confgcc} \
 					--with-system-zlib \
 					--disable-checking \
 					--disable-werror \
 					--disable-libunwind-exceptions"

 				# ACT's gnat-gpl does not like libada for whatever reason..
 				if [[ ${PN} == ${PN_GnatGpl} ]]; then
 					einfo "ACT's gnat-gpl does not like libada, disabling"
 					confgcc="${confgcc} --disable-libada"
 				else
 					confgcc="${confgcc} --enable-libada"
 				fi

 				# multilib support
 				if is_multilib ; then
 					confgcc="${confgcc} --enable-multilib"
 				else
 					confgcc="${confgcc} --disable-multilib"
 				fi

 #				einfo "confgcc=${confgcc}"

 				cd "${GNATBUILD}"
 				CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}" "${S}"/configure \
 					--prefix=${PREFIX} \
 					--bindir=${BINPATH} \
 					--includedir=${INCLUDEPATH} \
 					--libdir="${LIBPATH}" \
 					--libexecdir="${LIBEXECPATH}" \
 					--datadir=${DATAPATH} \
 					--mandir=${DATAPATH}/man \
 					--infodir=${DATAPATH}/info \
 					--program-prefix=gnat \
 					--enable-languages="c,ada" \
 					--with-gcc \
 					--enable-threads=posix \
 					--enable-shared \
 					--with-system-zlib \
 					${confgcc} || die "configure failed"
 			;;

 			make-tools)
 				debug-print-section make-tools
 				# Compile helper tools
 				cd "${GNATBOOT}"
 				cp "${S}"/gcc/ada/xtreeprs.adb .
 				cp "${S}"/gcc/ada/xsinfo.adb   .
 				cp "${S}"/gcc/ada/xeinfo.adb   .
 				cp "${S}"/gcc/ada/xnmake.adb   .
 				gnatmake xtreeprs && \
 				gnatmake xsinfo   && \
 				gnatmake xeinfo   && \
 				gnatmake xnmake   || die "building helper tools"
 			;;

 			bootstrap)
 				debug-print-section bootstrap
 				# and, finally, the build itself
 				cd "${GNATBUILD}"
 				emake bootstrap || die "bootstrap failed"
 			;;

 			gnatlib_and_tools)
 				debug-print-section gnatlib_and_tools
 				einfo "building gnatlib_and_tools"
 				cd "${GNATBUILD}"
 				emake -j1 -C gcc gnatlib_and_tools || \
 					die "gnatlib_and_tools failed"
 			;;

 			gnatlib-shared)
 				debug-print-section gnatlib-shared
 				einfo "building shared lib"
 				cd "${GNATBUILD}"
 				rm -f gcc/ada/rts/*.{o,ali} || die
 				#otherwise make tries to reuse already compiled (without -fPIC) objs..
 				emake -j1 -C gcc gnatlib-shared LIBRARY_VERSION="${GCCBRANCH}" || \
 					die "gnatlib-shared failed"
 			;;

 		esac
 		shift
 		done # while
 	fi   # "all" == "$1"
 }
 # -- end gnatbuild_src_compile


 gnatbuild_src_install() {
 	debug-print-function ${FUNCNAME} $@

 	if [[ -z "$1" ]] ; then
 		gnatbuild_src_install all
 		return $?
 	fi

 	while [ "$1" ]; do
 	case $1 in
 	install) # runs provided make install
 		debug-print-section install

 		# Looks like we need an access to the bootstrap compiler here too
 		# as gnat apparently wants to compile something during the installation
 		# The spotted obuser was xgnatugn, used to process gnat_ugn_urw.texi,
 		# during preparison of the docs.
 		export PATH="${GNATBOOT}/bin:${PATH}"
 		GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"

 		export CC="${GNATBOOT}/bin/gnatgcc"
 		export INCLUDE_DIR="${GNATLIB}/include"
 		export LIB_DIR="${GNATLIB}"
 		export LDFLAGS="-L${GNATLIB}"
 		export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
 		export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

 		# Do not allow symlinks in /usr/lib/gcc/${CHOST}/${MY_PV}/include as
 		# this can break the build.
 		for x in "${GNATBUILD}"/gcc/include/* ; do
 			if [ -L ${x} ] ; then
 				rm -f ${x}
 			fi
 		done
 		# Remove generated headers, as they can cause things to break
 		# (ncurses, openssl, etc). (from toolchain.eclass)
 		for x in $(find "${WORKDIR}"/build/gcc/include/ -name '*.h') ; do
 			grep -q 'It has been auto-edited by fixincludes from' "${x}" \
 				&& rm -f "${x}"
 		done


 		cd "${GNATBUILD}"
 		make DESTDIR="${D}" install || die

 		#make a convenience info link
 		dosym ${DATAPATH}/info/gnat_ugn_unw.info ${DATAPATH}/info/gnat.info
 		;;

 	move_libs)
 		debug-print-section move_libs

 		# first we need to remove some stuff to make moving easier
 		rm -rf "${D}${LIBPATH}"/{32,include,libiberty.a}
 		# gcc insists on installing libs in its own place
 		mv "${D}${LIBPATH}/gcc/${CTARGET}/${GCCRELEASE}"/* "${D}${LIBPATH}"
 		mv "${D}${LIBEXECPATH}/gcc/${CTARGET}/${GCCRELEASE}"/* "${D}${LIBEXECPATH}"

 		# libgcc_s  and, with gcc>=4.0, other libs get installed in multilib specific locations by gcc
 		# we pull everything together to simplify working environment
 		if has_multilib_profile ; then
 			case $(tc-arch) in
 				amd64)
 					mv "${D}${LIBPATH}"/../$(get_abi_LIBDIR amd64)/* "${D}${LIBPATH}"
 					mv "${D}${LIBPATH}"/../$(get_abi_LIBDIR x86)/* "${D}${LIBPATH}"/32
 				;;
 				ppc64)
 					# not supported yet, will have to be adjusted when we
 					# actually build gnat for that arch
 				;;
 			esac
 		fi

 		# force gnatgcc to use its own specs - versions prior to 3.4.6 read specs
 		# from system gcc location. Do the simple wrapper trick for now
 		# !ATTN! change this if eselect-gnat starts to follow eselect-compiler
 		if [[ ${GCCVER} < 3.4.6 ]] ; then
 			# gcc 4.1 uses builtin specs. What about 4.0?
 			cd "${D}${BINPATH}"
 			mv gnatgcc gnatgcc_2wrap
 			cat > gnatgcc << EOF
 #! /bin/bash
 # wrapper to cause gnatgcc read appropriate specs and search for the right .h
 # files (in case no matching gcc is installed)
 BINDIR=\$(dirname \$0)
 # The paths in the next line have to be absolute, as gnatgcc may be called from
 # any location
 \${BINDIR}/gnatgcc_2wrap -specs="${LIBPATH}/specs" -I"${LIBPATH}/include" \$@
 EOF
 			chmod a+x gnatgcc
 		fi

 		# earlier gnat's generate some Makefile's at generic location, need to
 		# move to avoid collisions
 		[ -f "${D}${PREFIX}"/share/gnat/Makefile.generic ] &&
 			mv "${D}${PREFIX}"/share/gnat/Makefile.* "${D}${DATAPATH}"

 		# use gid of 0 because some stupid ports don't have
 		# the group 'root' set to gid 0 (toolchain.eclass)
 		chown -R root:0 "${D}${LIBPATH}"
 		;;

 	cleanup)
 		debug-print-section cleanup

 		rm -rf "${D}${LIBPATH}"/{gcc,install-tools,../lib{32,64}}
 		rm -rf "${D}${LIBEXECPATH}"/{gcc,install-tools}

 		# this one is installed by gcc and is a duplicate even here anyway
 		rm -f "${D}${BINPATH}/${CTARGET}-gcc-${GCCRELEASE}"

 		# remove duplicate docs
 		rm -f  "${D}${DATAPATH}"/info/{dir,gcc,cpp}*
 		rm -rf "${D}${DATAPATH}"/man/man7/
 		;;

 	prep_env)
 		# instead of putting junk under /etc/env.d/gnat we recreate env files as
 		# needed with eselect
 		create_eselect_conf
 		;;

 	all)
 		gnatbuild_src_install install move_libs cleanup prep_env
 		;;
 	esac
 	shift
 	done # while
 }
 # -- end gnatbuild_src_install
	# Copyright 1999-2006 Gentoo Foundation
	# Distributed under the terms of the GNU General Public License v2
	# $Header: /var/cvsroot/gentoo-x86/eclass/gnatbuild.eclass,v 1.50 2010/01/22 13:27:36 george Exp $
	#
	# Author: George Shapovalov <george@gentoo.org>
	# Belongs to: ada herd <ada@gentoo.org>
	#
	# Notes:
	# HOMEPAGE and LICENSE are set in appropriate ebuild, as
	# gnat is developed by FSF and AdaCore "in parallel"
	#
	# The following vars can be set in ebuild before inheriting this eclass. They
	# will be respected:
	# SLOT
	# BOOT_SLOT - where old bootstrap is used as it works fine


	inherit eutils versionator toolchain-funcs flag-o-matic multilib autotools \
	libtool fixheadtails gnuconfig pax-utils

	EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_postrm src_unpack src_compile src_install

	DESCRIPTION="Based on the ${ECLASS} eclass"

	IUSE="nls"
	# multilib is supported via profiles now, multilib usevar is deprecated

	DEPEND=">=app-admin/eselect-gnat-1.3"
	RDEPEND="app-admin/eselect-gnat"

	# Note!
	# It may not be safe to source this at top level. Only source inside local
	# functions!
	GnatCommon="/usr/share/gnat/lib/gnat-common.bash"

	#---->> globals and SLOT <<----

	# just a check, this location seems to vary too much, easier to track it in
	# ebuild
	#[ -z "${GNATSOURCE}" ] && die "please set GNATSOURCE in ebuild! (before inherit)"

	# versioning
	# because of gnatpro/gnatgpl we need to track both gcc and gnat versions

	# these simply default to $PV
	GNATMAJOR=$(get_version_component_range 1)
	GNATMINOR=$(get_version_component_range 2)
	GNATBRANCH=$(get_version_component_range 1-2)
	GNATRELEASE=$(get_version_component_range 1-3)
	# this one is for the gnat-gpl which is versioned by gcc backend and ACT version
	# number added on top
	ACT_Ver=$(get_version_component_range 4)

	# GCCVER and SLOT logic
	#
	# I better define vars for package names, as there was discussion on proper
	# naming and it may change
	PN_GnatGCC="gnat-gcc"
	PN_GnatGpl="gnat-gpl"

	# ATTN! GCCVER stands for the provided backend gcc, not the one on the system
	# so tc-* functions are of no use here. The present versioning scheme makes
	# GCCVER basically a part of PV, but this may change!!
	#
	# GCCVER can be set in the ebuild.
	[[ -z ${GCCVER} ]] && GCCVER="${GNATRELEASE}"


	# finally extract GCC version strings
	GCCMAJOR=$(get_version_component_range 1 "${GCCVER}")
	GCCMINOR=$(get_version_component_range 2 "${GCCVER}")
	GCCBRANCH=$(get_version_component_range 1-2 "${GCCVER}")
	GCCRELEASE=$(get_version_component_range 1-3 "${GCCVER}")

	# SLOT logic, make it represent gcc backend, as this is what matters most
	# There are some special cases, so we allow it to be defined in the ebuild
	# ATTN!! If you set SLOT in the ebuild, don't forget to make sure that
	# BOOT_SLOT is also set properly!
	[[ -z ${SLOT} ]] && SLOT="${GCCBRANCH}"

	# possible future crosscompilation support
	export CTARGET=${CTARGET:-${CHOST}}

	is_crosscompile() {
	[[ ${CHOST} != ${CTARGET} ]]
	}

	# Bootstrap CTARGET and SLOT logic. For now BOOT_TARGET=CHOST is "guaranteed" by
	# profiles, so mostly watch out for the right SLOT used in the bootstrap.
	# As above, with SLOT, it may need to be defined in the ebuild
	BOOT_TARGET=${CTARGET}
	[[ -z ${BOOT_SLOT} ]] && BOOT_SLOT=${SLOT}

	# set our install locations
	PREFIX=${GNATBUILD_PREFIX:-/usr} # not sure we need this hook, but may be..
	LIBPATH=${PREFIX}/$(get_libdir)/${PN}/${CTARGET}/${SLOT}
	LIBEXECPATH=${PREFIX}/libexec/${PN}/${CTARGET}/${SLOT}
	INCLUDEPATH=${LIBPATH}/include
	BINPATH=${PREFIX}/${CTARGET}/${PN}-bin/${SLOT}
	DATAPATH=${PREFIX}/share/${PN}-data/${CTARGET}/${SLOT}
	# ATTN! the one below should match the path defined in eselect-gnat module
	CONFIG_PATH="/usr/share/gnat/eselect"
	gnat_profile="${CTARGET}-${PN}-${SLOT}"
	gnat_config_file="${CONFIG_PATH}/${gnat_profile}"


	# ebuild globals
	if [[ ${PN} == "${PN_GnatPro}" ]] && [[ ${GNATMAJOR} == "3" ]]; then
	DEPEND="x86? ( >=app-shells/tcsh-6.0 )"
	fi
	S="${WORKDIR}/gcc-${GCCVER}"

	# bootstrap globals, common to src_unpack and src_compile
	GNATBOOT="${WORKDIR}/usr"
	GNATBUILD="${WORKDIR}/build"

	# necessary for detecting lib locations and creating env.d entry
	#XGCC="${GNATBUILD}/gcc/xgcc -B${GNATBUILD}/gcc"

	#----<< globals and SLOT >>----

	# set SRC_URI's in ebuilds for now

	#----<< support checks >>----
	# skipping this section - do not care about hardened/multilib for now

	#---->> specs + env.d logic <<----
	# TODO!!!
	# set MANPATH, etc..
	#----<< specs + env.d logic >>----


	#---->> some helper functions <<----
	is_multilib() {
	[[ ${GCCMAJOR} < 3 ]] && return 1
	case ${CTARGET} in
	mips64\|powerpc64\|s390x\|sparc64\|x86_64*)
	has_multilib_profile \|\| use multilib ;;
	*) false ;;
	esac
	}

	# adapted from toolchain,
	# left only basic multilib functionality and cut off mips stuff

	create_specs_file() {
	einfo "Creating a vanilla gcc specs file"
	"${WORKDIR}"/build/gcc/xgcc -dumpspecs > "${WORKDIR}"/build/vanilla.specs
	}


	# eselect stuff taken straight from toolchain.eclass and greatly simplified
	add_profile_eselect_conf() {
	local gnat_config_file=$1
	local abi=$2
	local var

	echo >> "${D}/${gnat_config_file}"
	if ! is_multilib ; then
	echo " ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
	else
	echo "[${abi}]" >> "${D}/${gnat_config_file}"
	var="CTARGET_${abi}"
	if [[ -n ${!var} ]] ; then
	echo " ctarget=${!var}" >> "${D}/${gnat_config_file}"
	else
	var="CHOST_${abi}"
	if [[ -n ${!var} ]] ; then
	echo " ctarget=${!var}" >> "${D}/${gnat_config_file}"
	else
	echo " ctarget=${CTARGET}" >> "${D}/${gnat_config_file}"
	fi
	fi
	fi

	var="CFLAGS_${abi}"
	if [[ -n ${!var} ]] ; then
	echo " cflags=${!var}" >> "${D}/${gnat_config_file}"
	fi
	}


	create_eselect_conf() {
	local abi

	dodir ${CONFIG_PATH}

	echo "[global]" > "${D}/${gnat_config_file}"
	echo " version=${CTARGET}-${SLOT}" >> "${D}/${gnat_config_file}"
	echo " binpath=${BINPATH}" >> "${D}/${gnat_config_file}"
	echo " libexecpath=${LIBEXECPATH}" >> "${D}/${gnat_config_file}"
	echo " ldpath=${LIBPATH}" >> "${D}/${gnat_config_file}"
	echo " manpath=${DATAPATH}/man" >> "${D}/${gnat_config_file}"
	echo " infopath=${DATAPATH}/info" >> "${D}/${gnat_config_file}"
	echo " bin_prefix=${CTARGET}" >> "${D}/${gnat_config_file}"

	for abi in $(get_all_abis) ; do
	add_profile_eselect_conf "${D}/${gnat_config_file}" "${abi}"
	done
	}



	should_we_eselect_gnat() {
	# we only want to switch compilers if installing to / or /tmp/stage1root
	[[ ${ROOT} == "/" ]] \|\| return 1

	# if the current config is invalid, we definitely want a new one
	# Note: due to bash quirkiness, the following must not be 1 line
	local curr_config
	curr_config=$(eselect --no-color gnat show \| grep ${CTARGET} \| awk '{ print $1 }') \|\| return 0
	[[ -z ${curr_config} ]] && return 0

	# The logic is basically "try to keep the same profile if possible"

	if [[ ${curr_config} == ${CTARGET}-${PN}-${SLOT} ]] ; then
	return 0
	else
	elog "The current gcc config appears valid, so it will not be"
	elog "automatically switched for you. If you would like to"
	elog "switch to the newly installed gcc version, do the"
	elog "following:"
	echo
	elog "eselect gnat set <profile>"
	echo
	ebeep
	return 1
	fi
	}

	# active compiler selection, called from pkg_postinst
	do_gnat_config() {
	eselect gnat set ${CTARGET}-${PN}-${SLOT} &> /dev/null

	elog "The following gnat profile has been activated:"
	elog "${CTARGET}-${PN}-${SLOT}"
	elog ""
	elog "The compiler has been installed as gnatgcc, and the coverage testing"
	elog "tool as gnatgcov."
	elog ""
	elog "Ada handling in Gentoo allows you to have multiple gnat variants"
	elog "installed in parallel and automatically manage Ada libs."
	elog "Please take a look at the Ada project page for some documentation:"
	elog "http://www.gentoo.org/proj/en/prog_lang/ada/index.xml"
	}


	# Taken straight from the toolchain.eclass. Only removed the "obsolete hunk"
	#
	# The purpose of this DISGUSTING gcc multilib hack is to allow 64bit libs
	# to live in lib instead of lib64 where they belong, with 32bit libraries
	# in lib32. This hack has been around since the beginning of the amd64 port,
	# and we're only now starting to fix everything that's broken. Eventually
	# this should go away.
	#
	# Travis Tilley <lv@gentoo.org> (03 Sep 2004)
	#
	disgusting_gcc_multilib_HACK() {
	local config
	local libdirs
	if has_multilib_profile ; then
	case $(tc-arch) in
	amd64)
	config="i386/t-linux64"
	libdirs="../$(get_abi_LIBDIR amd64) ../$(get_abi_LIBDIR x86)" \
	;;
	ppc64)
	config="rs6000/t-linux64"
	libdirs="../$(get_abi_LIBDIR ppc64) ../$(get_abi_LIBDIR ppc)" \
	;;
	esac
	else
	die "Your profile is no longer supported by portage."
	fi

	einfo "updating multilib directories to be: ${libdirs}"
	sed -i -e "s:^MULTILIB_OSDIRNAMES.*:MULTILIB_OSDIRNAMES = ${libdirs}:" "${S}"/gcc/config/${config}
	}


	#---->> pkg_* <<----
	gnatbuild_pkg_setup() {
	debug-print-function ${FUNCNAME} $@

	# Setup variables which would normally be in the profile
	if is_crosscompile ; then
	multilib_env ${CTARGET}
	fi

	# we dont want to use the installed compiler's specs to build gnat!
	unset GCC_SPECS
	}

	gnatbuild_pkg_postinst() {
	if should_we_eselect_gnat; then
	do_gnat_config
	else
	eselect gnat update
	fi

	# if primary compiler list is empty, add this profile to the list, so
	# that users are not left without active compilers (making sure that
	# libs are getting built for at least one)
	elog
	. ${GnatCommon} \|\| die "failed to source common code"
	if [[ ! -f ${PRIMELIST} ]] \|\| [[ ! -s ${PRIMELIST} ]]; then
	echo "${gnat_profile}" > ${PRIMELIST}
	elog "The list of primary compilers was empty and got assigned ${gnat_profile}."
	fi
	elog "Please edit ${PRIMELIST} and list there gnat profiles intended"
	elog "for common use."
	}


	gnatbuild_pkg_postrm() {
	# "eselect gnat update" now removes the env.d file if the corresponding
	# gnat profile was unmerged
	eselect gnat update
	elog "If you just unmerged the last gnat in this SLOT, your active gnat"
	elog "profile got unset. Please check what eselect gnat show tells you"
	elog "and set the desired profile"
	}
	#---->> pkg_* <<----

	#---->> src_* <<----

	# common unpack stuff
	gnatbuild_src_unpack() {
	debug-print-function ${FUNCNAME} $@
	[ -z "$1" ] && gnatbuild_src_unpack all

	while [ "$1" ]; do
	case $1 in
	base_unpack)
	unpack ${A}
	pax-mark E $(find ${GNATBOOT} -name gnat1)

	cd "${S}"
	# patching gcc sources, following the toolchain
	if [[ -d "${FILESDIR}"/${SLOT} ]] ; then
	EPATCH_MULTI_MSG="Applying Gentoo patches ..." \
	epatch "${FILESDIR}"/${SLOT}/*.patch
	fi
	# Replacing obsolete head/tail with POSIX compliant ones
	ht_fix_file */configure

	if ! is_crosscompile && is_multilib && \
	[[ ( $(tc-arch) == "amd64" \|\| $(tc-arch) == "ppc64" ) && -z ${SKIP_MULTILIB_HACK} ]] ; then
	disgusting_gcc_multilib_HACK \|\| die "multilib hack failed"
	fi

	# Fixup libtool to correctly generate .la files with portage
	cd "${S}"
	elibtoolize --portage --shallow --no-uclibc

	gnuconfig_update
	# update configure files
	einfo "Fixing misc issues in configure files"
	for f in $(grep -l 'autoconf version 2.13' $(find "${S}" -name configure)) ; do
	ebegin " Updating ${f}"
	patch "${f}" "${FILESDIR}"/gcc-configure-LANG.patch >& "${T}"/configure-patch.log \
	\|\| eerror "Please file a bug about this"
	eend $?
	done

	# this is only needed for gnat-gpl-4.1 and breaks for gnat-gcc, so
	# this block was moved to corresponding ebuild
	# pushd "${S}"/gnattools &> /dev/null
	# eautoconf
	# popd &> /dev/null
	;;

	common_prep)
	# Prepare the gcc source directory
	cd "${S}/gcc"
	touch cstamp-h.in
	touch ada/[es]info.h
	touch ada/nmake.ad[bs]
	# set the compiler name to gnatgcc
	for i in `find ada/ -name '*.ad[sb]'`; do \
	sed -i -e "s/\"gcc\"/\"gnatgcc\"/g" ${i}; \
	done
	# add -fPIC flag to shared libs for 3.4* backend
	if [ "3.4" == "${GCCBRANCH}" ] ; then
	cd ada
	epatch "${FILESDIR}"/gnat-Make-lang.in.patch
	fi

	# gcc sources as of 4.3 seem to have a common omission of $(DESTDIR),
	# that leads to make install trying to rm -f file on live system.
	# As we do not need this rm, we simply remove the whole line
	sed -i -e "/\$(RM) \$(bindir)/d" "${S}"/gcc/ada/Make-lang.in

	mkdir -p "${GNATBUILD}"
	;;

	all)
	gnatbuild_src_unpack base_unpack common_prep
	;;
	esac
	shift
	done
	}

	# it would be nice to split configure and make steps
	# but both need to operate inside specially tuned evironment
	# so just do sections for now (as in eclass section of handbook)
	# sections are: configure, make-tools, bootstrap,
	# gnatlib_and_tools, gnatlib-shared
	gnatbuild_src_compile() {
	debug-print-function ${FUNCNAME} $@
	if [[ -z "$1" ]]; then
	gnatbuild_src_compile all
	return $?
	fi

	if [[ "all" == "$1" ]]
	then # specialcasing "all" to avoid scanning sources unnecessarily
	gnatbuild_src_compile configure make-tools \
	bootstrap gnatlib_and_tools gnatlib-shared

	else
	# Set some paths to our bootstrap compiler.
	export PATH="${GNATBOOT}/bin:${PATH}"
	# !ATTN! the bootstrap compilers have a very simplystic structure,
	# so many paths are not identical to the installed ones.
	# Plus it was simplified even more in new releases.
	if [[ ${BOOT_SLOT} > 4.1 ]] ; then
	GNATLIB="${GNATBOOT}/lib"
	else
	GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"
	fi

	export CC="${GNATBOOT}/bin/gnatgcc"
	export INCLUDE_DIR="${GNATLIB}/include"
	export LIB_DIR="${GNATLIB}"
	export LDFLAGS="-L${GNATLIB}"

	# additional vars from gnuada and elsewhere
	#export LD_RUN_PATH="${LIBPATH}"
	export LIBRARY_PATH="${GNATLIB}"
	#export LD_LIBRARY_PATH="${GNATLIB}"
	# export COMPILER_PATH="${GNATBOOT}/bin/"

	export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
	export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

	# einfo "CC=${CC},
	# ADA_INCLUDE_PATH=${ADA_INCLUDE_PATH},
	# LDFLAGS=${LDFLAGS},
	# PATH=${PATH}"

	while [ "$1" ]; do
	case $1 in
	configure)
	debug-print-section configure
	# Configure gcc
	local confgcc

	# some cross-compile logic from toolchain
	confgcc="${confgcc} --host=${CHOST}"
	if is_crosscompile \|\| tc-is-cross-compiler ; then
	confgcc="${confgcc} --target=${CTARGET}"
	fi
	[[ -n ${CBUILD} ]] && confgcc="${confgcc} --build=${CBUILD}"

	# Native Language Support
	if use nls ; then
	confgcc="${confgcc} --enable-nls --without-included-gettext"
	else
	confgcc="${confgcc} --disable-nls"
	fi

	# reasonably sane globals (from toolchain)
	confgcc="${confgcc} \
	--with-system-zlib \
	--disable-checking \
	--disable-werror \
	--disable-libunwind-exceptions"

	# ACT's gnat-gpl does not like libada for whatever reason..
	if [[ ${PN} == ${PN_GnatGpl} ]]; then
	einfo "ACT's gnat-gpl does not like libada, disabling"
	confgcc="${confgcc} --disable-libada"
	else
	confgcc="${confgcc} --enable-libada"
	fi

	# multilib support
	if is_multilib ; then
	confgcc="${confgcc} --enable-multilib"
	else
	confgcc="${confgcc} --disable-multilib"
	fi

	# einfo "confgcc=${confgcc}"

	cd "${GNATBUILD}"
	CFLAGS="${CFLAGS}" CXXFLAGS="${CXXFLAGS}" "${S}"/configure \
	--prefix=${PREFIX} \
	--bindir=${BINPATH} \
	--includedir=${INCLUDEPATH} \
	--libdir="${LIBPATH}" \
	--libexecdir="${LIBEXECPATH}" \
	--datadir=${DATAPATH} \
	--mandir=${DATAPATH}/man \
	--infodir=${DATAPATH}/info \
	--program-prefix=gnat \
	--enable-languages="c,ada" \
	--with-gcc \
	--enable-threads=posix \
	--enable-shared \
	--with-system-zlib \
	${confgcc} \|\| die "configure failed"
	;;

	make-tools)
	debug-print-section make-tools
	# Compile helper tools
	cd "${GNATBOOT}"
	cp "${S}"/gcc/ada/xtreeprs.adb .
	cp "${S}"/gcc/ada/xsinfo.adb .
	cp "${S}"/gcc/ada/xeinfo.adb .
	cp "${S}"/gcc/ada/xnmake.adb .
	gnatmake xtreeprs && \
	gnatmake xsinfo && \
	gnatmake xeinfo && \
	gnatmake xnmake \|\| die "building helper tools"
	;;

	bootstrap)
	debug-print-section bootstrap
	# and, finally, the build itself
	cd "${GNATBUILD}"
	emake bootstrap \|\| die "bootstrap failed"
	;;

	gnatlib_and_tools)
	debug-print-section gnatlib_and_tools
	einfo "building gnatlib_and_tools"
	cd "${GNATBUILD}"
	emake -j1 -C gcc gnatlib_and_tools \|\| \
	die "gnatlib_and_tools failed"
	;;

	gnatlib-shared)
	debug-print-section gnatlib-shared
	einfo "building shared lib"
	cd "${GNATBUILD}"
	rm -f gcc/ada/rts/*.{o,ali} \|\| die
	#otherwise make tries to reuse already compiled (without -fPIC) objs..
	emake -j1 -C gcc gnatlib-shared LIBRARY_VERSION="${GCCBRANCH}" \|\| \
	die "gnatlib-shared failed"
	;;

	esac
	shift
	done # while
	fi # "all" == "$1"
	}
	# -- end gnatbuild_src_compile


	gnatbuild_src_install() {
	debug-print-function ${FUNCNAME} $@

	if [[ -z "$1" ]] ; then
	gnatbuild_src_install all
	return $?
	fi

	while [ "$1" ]; do
	case $1 in
	install) # runs provided make install
	debug-print-section install

	# Looks like we need an access to the bootstrap compiler here too
	# as gnat apparently wants to compile something during the installation
	# The spotted obuser was xgnatugn, used to process gnat_ugn_urw.texi,
	# during preparison of the docs.
	export PATH="${GNATBOOT}/bin:${PATH}"
	GNATLIB="${GNATBOOT}/lib/gnatgcc/${BOOT_TARGET}/${BOOT_SLOT}"

	export CC="${GNATBOOT}/bin/gnatgcc"
	export INCLUDE_DIR="${GNATLIB}/include"
	export LIB_DIR="${GNATLIB}"
	export LDFLAGS="-L${GNATLIB}"
	export ADA_OBJECTS_PATH="${GNATLIB}/adalib"
	export ADA_INCLUDE_PATH="${GNATLIB}/adainclude"

	# Do not allow symlinks in /usr/lib/gcc/${CHOST}/${MY_PV}/include as
	# this can break the build.
	for x in "${GNATBUILD}"/gcc/include/* ; do
	if [ -L ${x} ] ; then
	rm -f ${x}
	fi
	done
	# Remove generated headers, as they can cause things to break
	# (ncurses, openssl, etc). (from toolchain.eclass)
	for x in $(find "${WORKDIR}"/build/gcc/include/ -name '*.h') ; do
	grep -q 'It has been auto-edited by fixincludes from' "${x}" \
	&& rm -f "${x}"
	done


	cd "${GNATBUILD}"
	make DESTDIR="${D}" install \|\| die

	#make a convenience info link
	dosym ${DATAPATH}/info/gnat_ugn_unw.info ${DATAPATH}/info/gnat.info
	;;

	move_libs)
	debug-print-section move_libs

	# first we need to remove some stuff to make moving easier
	rm -rf "${D}${LIBPATH}"/{32,include,libiberty.a}
	# gcc insists on installing libs in its own place
	mv "${D}${LIBPATH}/gcc/${CTARGET}/${GCCRELEASE}"/* "${D}${LIBPATH}"
	mv "${D}${LIBEXECPATH}/gcc/${CTARGET}/${GCCRELEASE}"/* "${D}${LIBEXECPATH}"

	# libgcc_s and, with gcc>=4.0, other libs get installed in multilib specific locations by gcc
	# we pull everything together to simplify working environment
	if has_multilib_profile ; then
	case $(tc-arch) in
	amd64)
	mv "${D}${LIBPATH}"/../$(get_abi_LIBDIR amd64)/* "${D}${LIBPATH}"
	mv "${D}${LIBPATH}"/../$(get_abi_LIBDIR x86)/* "${D}${LIBPATH}"/32
	;;
	ppc64)
	# not supported yet, will have to be adjusted when we
	# actually build gnat for that arch
	;;
	esac
	fi

	# force gnatgcc to use its own specs - versions prior to 3.4.6 read specs
	# from system gcc location. Do the simple wrapper trick for now
	# !ATTN! change this if eselect-gnat starts to follow eselect-compiler
	if [[ ${GCCVER} < 3.4.6 ]] ; then
	# gcc 4.1 uses builtin specs. What about 4.0?
	cd "${D}${BINPATH}"
	mv gnatgcc gnatgcc_2wrap
	cat > gnatgcc << EOF
	#! /bin/bash
	# wrapper to cause gnatgcc read appropriate specs and search for the right .h
	# files (in case no matching gcc is installed)
	BINDIR=\$(dirname \$0)
	# The paths in the next line have to be absolute, as gnatgcc may be called from
	# any location
	\${BINDIR}/gnatgcc_2wrap -specs="${LIBPATH}/specs" -I"${LIBPATH}/include" \$@
	EOF
	chmod a+x gnatgcc
	fi

	# earlier gnat's generate some Makefile's at generic location, need to
	# move to avoid collisions
	[ -f "${D}${PREFIX}"/share/gnat/Makefile.generic ] &&
	mv "${D}${PREFIX}"/share/gnat/Makefile.* "${D}${DATAPATH}"

	# use gid of 0 because some stupid ports don't have
	# the group 'root' set to gid 0 (toolchain.eclass)
	chown -R root:0 "${D}${LIBPATH}"
	;;

	cleanup)
	debug-print-section cleanup

	rm -rf "${D}${LIBPATH}"/{gcc,install-tools,../lib{32,64}}
	rm -rf "${D}${LIBEXECPATH}"/{gcc,install-tools}

	# this one is installed by gcc and is a duplicate even here anyway
	rm -f "${D}${BINPATH}/${CTARGET}-gcc-${GCCRELEASE}"

	# remove duplicate docs
	rm -f "${D}${DATAPATH}"/info/{dir,gcc,cpp}*
	rm -rf "${D}${DATAPATH}"/man/man7/
	;;

	prep_env)
	# instead of putting junk under /etc/env.d/gnat we recreate env files as
	# needed with eselect
	create_eselect_conf
	;;

	all)
	gnatbuild_src_install install move_libs cleanup prep_env
	;;
	esac
	shift
	done # while
	}
	# -- end gnatbuild_src_install