Attachment #355744 for bug #474358

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LICENSE="GPL-2 LGPL-2.1"
RESTRICT="strip" # cross-compilers need controlled stripping

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

if [[ ${PV} == *_pre9999* ]] ; then
	EGIT_REPO_URI="git://gcc.gnu.org/git/gcc.git"

	local gcc_envd_base="/etc/env.d/gcc/${CTARGET}-${GCC_CONFIG_VER}"

	local gcc_specs_file
	local gcc_envd_file="${ED}${gcc_envd_base}"
	if [[ -z $1 ]] ; then
		# I'm leaving the following commented out to remind me that it
		# was an insanely -bad- idea. Stuff broke. GCC_SPECS isnt unset

		gcc_specs_file=""
	else
		gcc_envd_file+="-$1"
		gcc_specs_file="${EPREFIX}${LIBPATH}/$1.specs"
	fi

	# We want to list the default ABI's LIBPATH first so libtool

		local mdir mosdir abi ldpath
		for abi in $(get_all_abis TARGET) ; do
			mdir=$($(XGCC) $(get_abi_CFLAGS ${abi}) --print-multi-directory)
			ldpath=${EPREFIX}${LIBPATH}
			[[ ${mdir} != "." ]] && ldpath+="/${mdir}"
			ldpaths="${ldpath}${ldpaths:+:${ldpaths}}"


		done
	else
		# Older gcc's didn't do multilib, so logic is simple.
		ldpaths=${EPREFIX}${LIBPATH}
	fi

	cat <<-EOF > ${gcc_envd_file}
	PATH="${EPREFIX}${BINPATH}"
	ROOTPATH="${EPREFIX}${BINPATH}"
	GCC_PATH="${EPREFIX}${BINPATH}"
	LDPATH="${ldpaths}"
	MANPATH="${EPREFIX}${DATAPATH}/man"
	INFOPATH="${EPREFIX}${DATAPATH}/info"
	STDCXX_INCDIR="${STDCXX_INCDIR##*/}"
	CTARGET="${CTARGET}"
	GCC_SPECS="${gcc_specs_file}"

			"in your make.conf if you want to use this version."
	fi

	local realEPREFIX=$(python -c 'import os; print(os.path.realpath("'"${EPREFIX}"'"))')
	if [[ -z ${I_KNOW_MY_GCC_WORKS_FINE_WITH_SYMLINKS} && ${EPREFIX} != ${realEPREFIX} ]] ; then
		ewarn "Your \${EPREFIX} contains one or more symlinks.  GCC has a"
		ewarn "bug which prevents it from working properly when there are"
		ewarn "symlinks in your \${EPREFIX}."
		ewarn "See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29831"
	fi

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


		echo

		# Clean up old paths
		rm -f "${EROOT}"/*/rcscripts/awk/fixlafiles.awk "${EROOT}"/sbin/fix_libtool_files.sh
		rmdir "${EROOT}"/*/rcscripts{/awk,} 2>/dev/null

		mkdir -p "${EROOT}"/usr/{share/gcc-data,sbin,bin}
		cp "${EROOT}/${DATAPATH}"/fixlafiles.awk "${EROOT}"/usr/share/gcc-data/ || die
		cp "${EROOT}/${DATAPATH}"/fix_libtool_files.sh "${EROOT}"/usr/sbin/ || die

		# Since these aren't critical files and portage sucks with
		# handling of binpkgs, don't require these to be found
		cp "${EROOT}/${DATAPATH}"/c{89,99} "${EROOT}"/usr/bin/ 2>/dev/null
	fi

	if use regression-test ; then


	# clean up the cruft left behind by cross-compilers
	if is_crosscompile ; then
		if [[ -z $(ls "${EROOT}"/etc/env.d/gcc/${CTARGET}* 2>/dev/null) ]] ; then
			rm -f "${EROOT}"/etc/env.d/gcc/config-${CTARGET}
			rm -f "${EROOT}"/etc/env.d/??gcc-${CTARGET}
			rm -f "${EROOT}"/usr/bin/${CTARGET}-{gcc,{g,c}++}{,32,64}
		fi
		return 0
	fi

	# ROOT isnt handled by the script
	[[ ${ROOT} != "/" ]] && return 0

	if [[ ! -e ${EPREFIX}${LIBPATH}/libstdc++.so ]] ; then
		# make sure the profile is sane during same-slot upgrade #289403
		do_gcc_config

		einfo "Running 'fix_libtool_files.sh ${GCC_RELEASE_VER}'"
		"${EPREFIX}"/usr/sbin/fix_libtool_files.sh ${GCC_RELEASE_VER}
		if [[ -n ${BRANCH_UPDATE} ]] ; then
			einfo "Running 'fix_libtool_files.sh ${GCC_RELEASE_VER}-${BRANCH_UPDATE}'"
			"${EPREFIX}"/usr/sbin/fix_libtool_files.sh ${GCC_RELEASE_VER}-${BRANCH_UPDATE}
		fi
	fi



gcc_do_configure() {
	local confgcc=(
		--prefix="${EPREFIX}${PREFIX}"
		--bindir="${EPREFIX}${BINPATH}"
		--includedir="${EPREFIX}${INCLUDEPATH}"
		--datadir="${EPREFIX}${DATAPATH}"
		--mandir="${EPREFIX}${DATAPATH}/man"
		--infodir="${EPREFIX}${DATAPATH}/info"
		--with-gxx-include-dir="${EPREFIX}${STDCXX_INCDIR}"
		--with-gxx-include-dir="${STDCXX_INCDIR}"
	)
	# On Darwin we need libdir to be set in order to get correct install names
	# for things like libobjc-gnu, libgcj and libfortran.  If we enable it on

	elif tc_version_is_at_least 4.6 ; then
		confgcc+=( $(use_with graphite cloog) )
		confgcc+=( $(use_with graphite ppl) )
		use graphite && confgcc+=( --with-cloog-include="${EPREFIX}"/usr/include/cloog-ppl )
		use graphite && confgcc+=( --disable-ppl-version-check )
	elif tc_version_is_at_least 4.4 ; then
		confgcc+=( --without-cloog )

		*-w64-mingw*)	 needed_libc=mingw64-runtime;;
		mingw*|*-mingw*) needed_libc=mingw-runtime;;
		avr)			 confgcc+=( --enable-shared --disable-threads );;
		*-apple-darwin*) confgcc+=( --with-sysroot="${EPREFIX}"${PREFIX}/${CTARGET} );;
		*-solaris*)      confgcc+=( --with-sysroot="${EPREFIX}"${PREFIX}/${CTARGET} );;
		*-freebsd*)      confgcc+=( --with-sysroot="${EPREFIX}"${PREFIX}/${CTARGET} );;
		esac
		if [[ -n ${needed_libc} ]] ; then
			local confgcc_no_libc=( --disable-shared )

			elif built_with_use --hidden --missing false ${CATEGORY}/${needed_libc} crosscompile_opts_headers-only ; then
				confgcc+=(
					"${confgcc_no_libc[@]}"
					--with-sysroot="${EPREFIX}"${PREFIX}/${CTARGET}
				)
			else
				confgcc+=( --with-sysroot="${EPREFIX}"${PREFIX}/${CTARGET} )
			fi
		fi


		*)
			confgcc+=( --enable-threads=posix ) ;;
		esac

		if use prefix ; then
			# should be /usr, because it's the path to search includes for,
			# which is unrelated to TOOLCHAIN_PREFIX, a.k.a. PREFIX
			confgcc+=( --with-local-prefix="${TPREFIX}"/usr )
		fi
	fi
	# __cxa_atexit is "essential for fully standards-compliant handling of
	# destructors", but apparently requires glibc.

	# if the target can do biarch (-m32/-m64), enable it.  overhead should
	# be small, and should simplify building of 64bit kernels in a 32bit
	# userland by not needing sys-devel/kgcc64.  #349405
	if ! use prefix ; then
	case $(tc-arch) in
	ppc|ppc64) tc_version_is_at_least 3.4 && confgcc+=( --enable-targets=all ) ;;
	sparc)     tc_version_is_at_least 4.4 && confgcc+=( --enable-targets=all ) ;;
	amd64|x86) tc_version_is_at_least 4.3 && confgcc+=( --enable-targets=all ) ;;
	esac
	fi

	tc_version_is_at_least 4.3 && confgcc+=(
		--with-bugurl=http://bugs.gentoo.org/


	# Nothing wrong with a good dose of verbosity
	echo
	einfo "EPREFIX:			${EPREFIX}"
	einfo "PREFIX:			${PREFIX}"
	einfo "BINPATH:			${BINPATH}"
	einfo "LIBPATH:			${LIBPATH}"


	pushd "${WORKDIR}"/build >/dev/null

	# we "undef" T because the GCC makefiles use this variable, and if it's set
	# in the environment (like Portage does) the build fails, bug #286494
	emake \
		T= \
		LDFLAGS="${LDFLAGS}" \
		STAGE1_CFLAGS="${STAGE1_CFLAGS}" \
		LIBPATH="${EPREFIX}${LIBPATH}" \
		BOOT_CFLAGS="${BOOT_CFLAGS}" \
		${GCC_MAKE_TARGET} \
		|| die "emake failed with ${GCC_MAKE_TARGET}"

	touch "${S}"/gcc/c-gperf.h

	# Do not make manpages if we do not have perl ...
	[[ ! -x ${EPREFIX}/usr/bin/perl ]] \
		&& find "${WORKDIR}"/build -name '*.[17]' | xargs touch

	einfo "Compiling ${PN} ..."

	S="${WORKDIR}"/build emake -j1 DESTDIR="${D}" install || die

	# Punt some tools which are really only useful while building gcc
	find "${ED}" -name install-tools -prune -type d -exec rm -rf "{}" \;
	# This one comes with binutils
	find "${ED}" -name libiberty.a -delete

	# Move the libraries to the proper location
	gcc_movelibs

	if ! is_crosscompile ; then
		local EXEEXT
		eval $(grep ^EXEEXT= "${WORKDIR}"/build/gcc/config.log)
		[[ -r ${ED}${BINPATH}/gcc${EXEEXT} ]] || die "gcc not found in ${ED}"
	fi

	dodir /etc/env.d/gcc

	gcc_slot_java

	dodir /usr/bin
	cd "${ED}"${BINPATH}
	# Ugh: we really need to auto-detect this list.
	#      It's constantly out of date.
	for x in cpp gcc g++ c++ gcov g77 gcj gcjh gfortran gccgo ; do

	done

	# Now do the fun stripping stuff
	env RESTRICT="" CHOST=${CHOST} prepstrip "${ED}${BINPATH}"
	env RESTRICT="" CHOST=${CTARGET} prepstrip "${ED}${LIBPATH}"
	# gcc used to install helper binaries in lib/ but then moved to libexec/
	[[ -d ${ED}${PREFIX}/libexec/gcc ]] && \
		env RESTRICT="" CHOST=${CHOST} prepstrip "${ED}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}"

	cd "${S}"
	if is_crosscompile; then
		rm -rf "${ED}"/usr/share/{man,info}
		rm -rf "${ED}"${DATAPATH}/{man,info}
	else
		if tc_version_is_at_least 3.0 ; then
			local cxx_mandir=$(find "${WORKDIR}/build/${CTARGET}/libstdc++-v3" -name man)
			if [[ -d ${cxx_mandir} ]] ; then
				# clean bogus manpages #113902
				find "${cxx_mandir}" -name '*_build_*' -exec rm {} \;
				cp -r "${cxx_mandir}"/man? "${ED}/${DATAPATH}"/man/
			fi
		fi
		has noinfo ${FEATURES} \
			&& rm -r "${ED}/${DATAPATH}"/info \
			|| prepinfo "${DATAPATH}"
		has noman ${FEATURES} \
			&& rm -r "${ED}/${DATAPATH}"/man \
			|| prepman "${DATAPATH}"
	fi
	# prune empty dirs left behind
	find "${ED}" -depth -type d -delete 2>/dev/null

	# install testsuite results
	if use regression-test; then

	# Rather install the script, else portage with changing $FILESDIR
	# between binary and source package borks things ....
	if ! is_crosscompile ; then
		cp "${GCC_FILESDIR}"/fix_libtool_files.sh "${T}"
		cp "${GCC_FILESDIR}"/awk/fixlafiles.awk-no_gcc_la "${T}"
		cp "${GCC_FILESDIR}"/awk/fixlafiles.awk "${T}"
		eprefixify \
			"${T}"/fix_libtool_files.sh \
			"${T}"/fixlafiles.awk-no_gcc_la \
			"${T}"/fixlafiles.awk

		insinto "${DATAPATH}"
		if tc_version_is_at_least 4.0 ; then
			newins "${T}"/fixlafiles.awk-no_gcc_la fixlafiles.awk || die
			find "${ED}/${LIBPATH}" -name libstdc++.la -type f -exec rm "{}" \;
		else
			doins "${T}"/fixlafiles.awk || die
		fi
		exeinto "${DATAPATH}"
		doexe "${T}"/fix_libtool_files.sh || die
		doexe "${GCC_FILESDIR}"/c{89,99} || die
	fi

	# Use gid of 0 because some stupid ports don't have
	# the group 'root' set to gid 0.  Send to /dev/null
	# for people who are testing as non-root.
	chown -R ${PORTAGE_INST_UID:-0}:${PORTAGE_INST_GID:-0} "${ED}"${LIBPATH} 2>/dev/null

	# Move pretty-printers to gdb datadir to shut ldconfig up
	local py gdbdir=/usr/share/gdb/auto-load${LIBPATH/\/lib\//\/$(get_libdir)\/}
	pushd "${ED}"${LIBPATH} >/dev/null
	for py in $(find . -name '*-gdb.py') ; do
		local multidir=${py%/*}
		insinto "${gdbdir}/${multidir}"


	# Disable RANDMMAP so PCH works. #301299
	if tc_version_is_at_least 4.3 ; then
		pax-mark -r "${ED}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}/cc1"
		pax-mark -r "${ED}${PREFIX}/libexec/gcc/${CTARGET}/${GCC_CONFIG_VER}/cc1plus"
	fi
}


	local x

	# Move Java headers to compiler-specific dir
	for x in "${ED}"${PREFIX}/include/gc*.h "${ED}"${PREFIX}/include/j*.h ; do
		[[ -f ${x} ]] && mv -f "${x}" "${ED}"${LIBPATH}/include/
	done
	for x in gcj gnu java javax org ; do
		if [[ -d ${ED}${PREFIX}/include/${x} ]] ; then
			dodir /${LIBPATH}/include/${x}
			mv -f "${ED}"${PREFIX}/include/${x}/* "${ED}"${LIBPATH}/include/${x}/
			rm -rf "${ED}"${PREFIX}/include/${x}
		fi
	done

	if [[ -d ${ED}${PREFIX}/lib/security ]] || [[ -d ${ED}${PREFIX}/$(get_libdir)/security ]] ; then
		dodir /${LIBPATH}/security
		mv -f "${ED}"${PREFIX}/lib*/security/* "${ED}"${LIBPATH}/security
		rm -rf "${ED}"${PREFIX}/lib*/security
	fi

	# Move random gcj files to compiler-specific directories
	for x in libgcj.spec logging.properties ; do
		x="${ED}${PREFIX}/lib/${x}"
		[[ -f ${x} ]] && mv -f "${x}" "${ED}"${LIBPATH}/
	done

	# Rename jar because it could clash with Kaffe's jar if this gcc is
	# primary compiler (aka don't have the -<version> extension)
	cd "${ED}"${BINPATH}
	[[ -f jar ]] && mv -f jar gcj-jar
}



		local OS_MULTIDIR=$($(XGCC) ${multiarg} --print-multi-os-directory)
		local MULTIDIR=$($(XGCC) ${multiarg} --print-multi-directory)
		local TODIR=${ED}${LIBPATH}/${MULTIDIR}
		local FROMDIR=

		[[ -d ${TODIR} ]] || mkdir -p ${TODIR}

			${PREFIX}/${CTARGET}/lib/${OS_MULTIDIR}
		do
			removedirs="${removedirs} ${FROMDIR}"
			FROMDIR=${ED}${FROMDIR}
			if [[ ${FROMDIR} != "${TODIR}" && -d ${FROMDIR} ]] ; then
				local files=$(find "${FROMDIR}" -maxdepth 1 ! -type d 2>/dev/null)
				if [[ -n ${files} ]] ; then


		# SLOT up libgcj.pc if it's available (and let gcc-config worry about links)
		FROMDIR="${PREFIX}/lib/${OS_MULTIDIR}"
		for x in "${ED}${FROMDIR}"/pkgconfig/libgcj*.pc ; do
			[[ -f ${x} ]] || continue
			sed -i "/^libdir=/s:=.*:=${LIBPATH}/${MULTIDIR}:" "${x}"
			mv "${x}" "${ED}${FROMDIR}"/pkgconfig/libgcj-${GCC_PV}.pc || die
		done
	done


	#	rmdir SRC/lib/../lib/
	#	mv SRC/lib/../lib32/*.o DEST  # Bork
	for FROMDIR in ${removedirs} ; do
		rmdir "${ED}"${FROMDIR} >& /dev/null
	done
	find "${ED}" -type d | xargs rmdir >& /dev/null
}
#----<< src_* >>----


	# 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=$(env -i ROOT="${ROOT}" "${EPREFIX}"/usr/bin/gcc-config -c ${CTARGET} 2>&1) || return 0

	# if the previously selected config has the same major.minor (branch) as
	# the version we are installing, then it will probably be uninstalled
	# for being in the same SLOT, make sure we run gcc-config.
	local curr_config_ver=$(env -i ROOT="${ROOT}" "${EPREFIX}"/usr/bin/gcc-config -S ${curr_config} | awk '{print $2}')

	local curr_branch_ver=$(get_version_component_range 1-2 ${curr_config_ver})



do_gcc_config() {
	if ! should_we_gcc_config ; then
		env -i ROOT="${ROOT}" "${EPREFIX}"/usr/bin/gcc-config --use-old --force
		return 0
	fi

	local current_gcc_config="" current_specs="" use_specs=""

	current_gcc_config=$(env -i ROOT="${ROOT}" "${EPREFIX}"/usr/bin/gcc-config -c ${CTARGET} 2>/dev/null)
	if [[ -n ${current_gcc_config} ]] ; then
		# figure out which specs-specific config is active
		current_specs=$(gcc-config -S ${current_gcc_config} | awk '{print $3}')
		[[ -n ${current_specs} ]] && use_specs=-${current_specs}
	fi
	if [[ -n ${use_specs} ]] && \
	   [[ ! -e ${EROOT}/etc/env.d/gcc/${CTARGET}-${GCC_CONFIG_VER}${use_specs} ]]
	then
		ewarn "The currently selected specs-specific gcc config,"
		ewarn "${current_specs}, doesn't exist anymore. This is usually"

# -are-, and not where they -used- to be.  also, any dependencies we have
# on our own .la files need to be updated.
fix_libtool_libdir_paths() {
	pushd "${ED}" >/dev/null

	pushd "./${1}" >/dev/null
	local dir="${PWD#${D%/}}"

	popd >/dev/null

	sed -i \
		-e "/^libdir=/s:=.*:='${EPREFIX}/${dir##/}':" \
		./${dir}/*.la
	sed -i \
		-e "/^dependency_libs=/s:/[^ ]*/${allarchives}:${EPREFIX}/${LIBPATH##/}/\1:g" \
		$(find ./${PREFIX}/lib* -maxdepth 3 -name '*.la') \
		./${dir}/*.la


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