[Bug 219598] [PATCH] sys-libs/uclibc-0.9.28.3 - backport of splice(2), tee(2) and vmsplice(2) syscalls

Package-Manager: portage-2.1.4.4

3 files changed, 469 insertions, 2 deletions

diff --git a/sys-libs/uclibc/ChangeLog b/sys-libs/uclibc/ChangeLog
index 5809434ead7e..8e656e77c9af 100644
--- a/sys-libs/uclibc/ChangeLog
+++ b/sys-libs/uclibc/ChangeLog
@@ -1,6 +1,12 @@
 # ChangeLog for sys-libs/uclibc
 # Copyright 1999-2008 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-libs/uclibc/ChangeLog,v 1.32 2008/04/23 02:29:16 solar Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-libs/uclibc/ChangeLog,v 1.33 2008/05/04 18:54:21 solar Exp $
+
+*uclibc-0.9.28.3-r5 (04 May 2008)
+
+  04 May 2008; <solar@gentoo.org> +uclibc-0.9.28.3-r5.ebuild:
+  [Bug 219598] [PATCH] sys-libs/uclibc-0.9.28.3 - backport of splice(2),
+  tee(2) and vmsplice(2) syscalls
 
   23 Apr 2008; <solar@gentoo.org> uclibc-0.9.28.3-r3.ebuild:
   - stable on arm/ppc/x86
diff --git a/sys-libs/uclibc/Manifest b/sys-libs/uclibc/Manifest
index 4411ab98005d..6a633a663ebd 100644
--- a/sys-libs/uclibc/Manifest
+++ b/sys-libs/uclibc/Manifest
@@ -11,6 +11,7 @@ DIST uClibc-0.9.28.3-patches-1.1.tar.bz2 16766 RMD160 db2b641782f3605dc03a549c6d
 DIST uClibc-0.9.28.3-patches-1.2.tar.bz2 17096 RMD160 f7ab3b4ff648c6c39edd53145bd95678b1d38093 SHA1 be59a9ebb2f14a1e26c9241282b0e1f0d095e6d6 SHA256 cbcf7d5e2923335d4123bc713357a236329c1bb58bb3acb0d11e63c517c6d0d7
 DIST uClibc-0.9.28.3-patches-1.3.tar.bz2 21241 RMD160 c78dda0bdbc751721559d91bdd60a29e5260007b SHA1 f89a0bd18fbda1101ad419c3abc06068dd237776 SHA256 b3a3a98798861e38525082884b4a5be1ab42d281c2680db3ddc0085d031aa397
 DIST uClibc-0.9.28.3-patches-1.5.tar.bz2 21478 RMD160 a01a0d95d20b1879633c134a0f05e700d36aa47d SHA1 ab7c66a040b68d6e48af36c832f7c113d7cebf74 SHA256 f789b2449c04ef5df35ae660355128181a6eff655b220cdcf1b9f0adb01db29f
+DIST uClibc-0.9.28.3-patches-1.6.tar.bz2 22615 RMD160 1a3e4a982d38cfcd0507423cae5c71a1f0d72f23 SHA1 a05e2d482d2d6e01f8720c497d5e1ca8a00e0421 SHA256 21807328be047e0008432d6254bdc0d8b1677df6d947cd54cfb882e63c4b81c0
 DIST uClibc-0.9.28.3.tar.bz2 1795383 RMD160 61591281f4193d4dcd0fa3252fb3286028d4cb63 SHA1 77c5220697a1772d0d9da4bda0d866e4f4b68540 SHA256 1d86d5dad6060e7057cfe023ffc7b7661bdc7fe95112b37447851c0a75b547a1
 DIST uClibc-0.9.28.tar.bz2 1763847 RMD160 41646bd94459a9c6f10aea4a4483fa4fedf30e7d SHA1 9124a6e5b0454da3f967725d54fde806189ad27b SHA256 c8bc5383eafaa299e9874ae50acc6549f8b54bc29ed64a9a3387b3e4cd7f4bcb
 DIST uClibc-locale-030818.tgz 236073 RMD160 8e3f4b20b94e07e535cbbbe81287186014c5f151 SHA1 78f901e6ed228ed84106bd034c1b97eee1eecb50 SHA256 c4362be318a38f18d98dccf462d22d95bab92f05548bb93f65298fe9afaebd57
@@ -22,7 +23,8 @@ EBUILD uclibc-0.9.28.3-r1.ebuild 14482 RMD160 8b67d88786cb67298bb82e16c71210f1cd
 EBUILD uclibc-0.9.28.3-r2.ebuild 14481 RMD160 063fbe0096cae80eb609ee9256c04925c7ebdb9f SHA1 db46e5a09d21a45d24b0b2a897a8aa0416b06a63 SHA256 93ed42f5bd71ca5c93de03bbe8213dc0c85d1da3780a203a6a5e3c4547b5e914
 EBUILD uclibc-0.9.28.3-r3.ebuild 14479 RMD160 8c98d256d1cb59dc47feb1b32903e83639323ff7 SHA1 a084eb0fa2a32c0aeb625693a2617f4ec97ce733 SHA256 90453171437194b2af4dc420628069856eaf26d59063d74e0bfc6863299c1293
 EBUILD uclibc-0.9.28.3-r4.ebuild 14483 RMD160 ef59ac03064a8758309c795e6f38cfc8a1956009 SHA1 872d949769952a0820690561623ea80969460269 SHA256 e02c98b26ad2d8152ed24ea81da136c5661da7a909ad63e58af3125783e06a8d
+EBUILD uclibc-0.9.28.3-r5.ebuild 14482 RMD160 fcb90b0b23897b6adc27814aacc7ed1d01c6326c SHA1 bac600ca95a74012ab174eb4844ac67c71194b3f SHA256 bec915acb78abb51ee27fcbb96a0a883021a2d60948c56bff0060e0d45a37c65
 EBUILD uclibc-0.9.28.3.ebuild 14473 RMD160 89e8993f578da9f77cf4b9b320ff0221672ff078 SHA1 6dc607dc6d665bb015deeb325efa3c2a207db09b SHA256 7e5ea21ddfd6943b3f934e917b6808c758644eb02bd84e0a55224ac8ed4e3ff6
 EBUILD uclibc-0.9.28.ebuild 14235 RMD160 fc6203de389eef708fdf583945dd77aade3b50b9 SHA1 0a1f018d57a9dee50416bcd2d50785f3dd20a7f2 SHA256 bdc000424fc7d5ffdd3639bbaeee5fdb1e54cdf22f65d831f39a98a71f4d373d
-MISC ChangeLog 12934 RMD160 34e16ff3dd492265b1c38dcab5a404fa61e04dab SHA1 37529f9fab5990091ced4a93f1ea73592207b40a SHA256 3469778644a4581a888928fd51ee33834b7cfdb42a7d9b1c5df49118974eafe9
+MISC ChangeLog 13139 RMD160 c97102ef409e006da989d3551ebf611e76a94859 SHA1 f94470ebbd03b600e58a8573382754afe68c6305 SHA256 177566d19cae9c0871c24bd0d9ef125405ff6ed4f7ec72abab7c46bcfc11a7e0
 MISC metadata.xml 999 RMD160 8367607c1e522c03d21a0f0ce68b316d42bd08cb SHA1 0433f3a405603e702c155ec67f67cb95bf628a1c SHA256 0be91c12da3e7c119ee885d360c0e983a69f0141614902bb2de6c54c08d4c56c
diff --git a/sys-libs/uclibc/uclibc-0.9.28.3-r5.ebuild b/sys-libs/uclibc/uclibc-0.9.28.3-r5.ebuild
new file mode 100644
index 000000000000..478d23edb820
--- /dev/null
+++ b/sys-libs/uclibc/uclibc-0.9.28.3-r5.ebuild
@@ -0,0 +1,459 @@
+# Copyright 1999-2008 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-libs/uclibc/uclibc-0.9.28.3-r5.ebuild,v 1.1 2008/05/04 18:54:21 solar Exp $
+
+#ESVN_REPO_URI="svn://uclibc.org/trunk/uClibc"
+#inherit subversion
+inherit eutils flag-o-matic toolchain-funcs
+
+export CBUILD=${CBUILD:-${CHOST}}
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CTARGET} == ${CHOST} ]] ; then
+	if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
+		export CTARGET=${CATEGORY/cross-}
+	fi
+fi
+# Handle the case where we want uclibc on glibc ...
+if [[ ${CTARGET} == ${CHOST} ]] && [[ ${CHOST} != *-uclibc ]] ; then
+	export UCLIBC_AND_GLIBC="sitting in a tree"
+	export CTARGET=${CHOST%%-*}-pc-linux-uclibc
+fi
+
+MY_P=uClibc-${PV}
+SVN_VER=""
+PATCH_VER="1.6"
+DESCRIPTION="C library for developing embedded Linux systems"
+HOMEPAGE="http://www.uclibc.org/"
+SRC_URI="mirror://kernel/linux/libs/uclibc/${MY_P}.tar.bz2
+	http://uclibc.org/downloads/${MY_P}.tar.bz2
+	nls? ( !userlocales? ( pregen? (
+		x86? ( http://www.uclibc.org/downloads/uClibc-locale-030818.tgz )
+	) ) )"
+[[ -z ${SVN_VER} ]] || \
+	SRC_URI="${SRC_URI} mirror://gentoo/${MY_P}-svn-update-${SVN_VER}.patch.bz2"
+[[ -z ${PATCH_VER} ]] || \
+	SRC_URI="${SRC_URI} mirror://gentoo/${MY_P}-patches-${PATCH_VER}.tar.bz2"
+
+LICENSE="LGPL-2"
+[[ ${CTARGET} != ${CHOST} ]] \
+	&& SLOT="${CTARGET}" \
+	|| SLOT="0"
+KEYWORDS="-* ~arm ~m68k -mips ~ppc ~sh ~sparc ~x86"
+IUSE="build uclibc-compat debug hardened iconv ipv6 minimal nls pregen savedconfig userlocales wordexp"
+RESTRICT="strip"
+
+RDEPEND=""
+if [[ ${CTARGET} == ${CHOST} ]] ; then
+	DEPEND="virtual/os-headers app-misc/pax-utils"
+	PROVIDE="virtual/libc"
+else
+	DEPEND=""
+fi
+
+S=${WORKDIR}/${MY_P}
+
+alt_build_kprefix() {
+	if [[ ${CBUILD} == ${CHOST} && ${CTARGET} == ${CHOST} ]] \
+	   || [[ -n ${UCLIBC_AND_GLIBC} ]]
+	then
+		echo /usr
+	else
+		echo /usr/${CTARGET}/usr
+	fi
+}
+just_headers() {
+	use crosscompile_opts_headers-only && [[ ${CHOST} != ${CTARGET} ]]
+}
+
+uclibc_endian() {
+	# XXX: this wont work for a toolchain which is bi-endian, but we
+	#      dont have any such thing at the moment, so not a big deal
+	touch "${T}"/endian.s
+	$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
+	case $(file "${T}"/endian.o) in
+		*" MSB "*) echo "big";;
+		*" LSB "*) echo "little";;
+		*)         echo "NFC";;
+	esac
+	rm -f "${T}"/endian.{s,o}
+}
+
+pkg_setup() {
+	just_headers && return 0
+	has_version ${CATEGORY}/uclibc || return 0
+	[[ -n ${UCLIBC_AND_GLIBC} ]] && return 0
+	[[ ${ROOT} != "/" ]] && return 0
+	[[ ${CATEGORY} == cross-* ]] && return 0
+
+	if ! built_with_use --missing false ${CATEGORY}/uclibc nls && use nls && ! use pregen ; then
+		eerror "You previously built uclibc with USE=-nls."
+		eerror "You cannot generate locale data with this"
+		eerror "system.  Please rerun emerge with USE=pregen."
+		die "host cannot support locales"
+	elif built_with_use --missing false ${CATEGORY}/uclibc nls && ! use nls ; then
+		eerror "You previously built uclibc with USE=nls."
+		eerror "Rebuilding uClibc with USE=-nls will prob"
+		eerror "destroy your system."
+		die "switching from nls is baaaad"
+	fi
+}
+
+PIE_STABLE="arm mips ppc x86"
+
+CPU_ALPHA=""
+CPU_AMD64=""
+CPU_ARM="GENERIC_ARM ARM{610,710,720T,920T,922T,926T,_{SA110,SA1100,XSCALE}}"
+CPU_IA64=""
+CPU_M68K=""
+CPU_MIPS="MIPS_ISA_{1,2,3,4,MIPS{32,64}}"
+CPU_PPC=""
+CPU_SH="SH{2,3,4,5}"
+CPU_SPARC=""
+CPU_X86="GENERIC_386 {3,4,5,6}86 586MMX PENTIUM{II,III,4} K{6,7} ELAN CRUSOE WINCHIP{C6,2} CYRIXIII NEHEMIAH"
+IUSE_UCLIBC_CPU="${CPU_ARM} ${CPU_MIPS} ${CPU_PPC} ${CPU_SH} ${CPU_SPARC} ${CPU_X86}"
+
+check_cpu_opts() {
+	local cpu_var="CPU_$(echo $(tc-arch) | tr [a-z] [A-Z])"
+	[[ -z ${!cpu_var} ]] && return 0
+
+	if [[ -z ${UCLIBC_CPU} ]] ; then
+		ewarn "You really should consider setting UCLIBC_CPU"
+		ewarn "Otherwise, the build will be generic (read: slow)."
+		ewarn "Available CPU options:"
+		UCLIBC_CPU=$(eval echo ${!cpu_var})
+		echo ${UCLIBC_CPU}
+		case ${CTARGET} in
+			mips[1234]*) export UCLIBC_CPU="MIPS_ISA_${CTARGET:4:1}";;
+			sh[2345]*)   export UCLIBC_CPU="SH${CTARGET:2:1}";;
+			i[456]86*)   export UCLIBC_CPU="${CTARGET:1:1}86";;
+			*)           export UCLIBC_CPU=${UCLIBC_CPU%% *};;
+		esac
+	else
+		local cpu found=0
+		for cpu in $(eval echo ${!cpu_var}) ; do
+			[[ ${UCLIBC_CPU} == "${cpu}" ]] && found=1 && break
+		done
+		if [[ ${found} -eq 0 ]] ; then
+			ewarn "UCLIBC_CPU choice '${UCLIBC_CPU}' not supported"
+			ewarn "Valid choices:"
+			eval echo ${!cpu_var}
+			die "pick a supported cpu type"
+		fi
+	fi
+}
+
+src_unpack() {
+	[[ -n ${ESVN_REPO_URI} ]] \
+		&& subversion_src_unpack \
+		|| unpack ${A}
+	cd "${S}"
+
+	check_cpu_opts
+
+	echo
+	einfo "Runtime Prefix: /"
+	einfo "Devel Prefix:   /usr"
+	einfo "Kernel Prefix:  $(alt_build_kprefix)"
+	einfo "CBUILD:         ${CBUILD}"
+	einfo "CHOST:          ${CHOST}"
+	einfo "CTARGET:        ${CTARGET}"
+	einfo "CPU:            ${UCLIBC_CPU:-default}"
+	einfo "ENDIAN:         $(uclibc_endian)"
+	echo
+
+	########## PATCHES ##########
+
+	[[ -n ${SVN_VER} ]] && \
+		epatch "${WORKDIR}"/${MY_P}-cvs-update-${SVN_VER}.patch
+
+	if [[ -n ${PATCH_VER} ]] ; then
+		unpack ${MY_P}-patches-${PATCH_VER}.tar.bz2
+		EPATCH_SUFFIX="patch"
+		epatch "${WORKDIR}"/patch
+		# math functions (sinf,cosf,tanf,atan2f,powf,fabsf,copysignf,scalbnf,rem_pio2f)
+		cp "${WORKDIR}"/patch/math/libm/* "${S}"/libm/ || die
+		epatch "${WORKDIR}"/patch/math
+	fi
+
+	########## CPU SELECTION ##########
+
+	local target config_target
+	case $(tc-arch) in
+		alpha) target="alpha";   config_target="no cpu-specific options";;
+		amd64) target="x86_64";  config_target="no cpu-specific options";;
+		arm)   target="arm";     config_target="GENERIC_ARM";;
+		ia64)  target="ia64";    config_target="no cpu-specific options";;
+		m68k)  target="m68k";    config_target="no cpu-specific options";;
+		mips)  target="mips";    config_target="MIPS_ISA_1";;
+		ppc)   target="powerpc"; config_target="no cpu-specific options";;
+		sh)    target="sh";      config_target="SH4";;
+		sparc) target="sparc";   config_target="no cpu-specific options";;
+		x86)   target="i386";    config_target="GENERIC_386";;
+		*)     die "$(tc-arch) lists no defaults :/";;
+	esac
+	sed -i -e "s:default TARGET_i386:default TARGET_${target}:" \
+		extra/Configs/Config.in
+	sed -i -e "s:default CONFIG_${config_target}:default CONFIG_${UCLIBC_CPU:-${config_target}}:" \
+		extra/Configs/Config.${target}
+
+	########## CONFIG SETUP ##########
+
+	make defconfig >/dev/null || die "could not config"
+
+	for def in DO{DEBUG{,_PT},ASSERTS} SUPPORT_LD_DEBUG{,_EARLY} ; do
+		sed -i -e "s:${def}=y:# ${def} is not set:" .config
+	done
+	if use debug ; then
+		#echo "SUPPORT_LD_DEBUG_EARLY=y" >> .config
+		echo "SUPPORT_LD_DEBUG=y" >> .config
+		echo "DODEBUG=y" >> .config
+		#echo "DODEBUG_PT=y" >> .config
+	fi
+
+	sed -i -e '/ARCH_.*_ENDIAN/d' .config
+	echo "ARCH_$(uclibc_endian | tr [a-z] [A-Z])_ENDIAN=y" >> .config
+
+	if [[ $(tc-is-softfloat) != "no" ]] ; then
+		sed -i -e '/^HAS_FPU=y$/d' .config
+		echo 'HAS_FPU=n' >> .config
+	fi
+
+	local moredefs="DL_FINI_CRT_COMPAT"
+	# We need todo this for a few months. .28 is a major upgrade.
+	# Don't do it from cross-compiling case though
+	if ! use uclibc-compat ; then
+		if [[ -z ${UCLIBC_AND_GLIBC} ]] && [[ -z ${UCLIBC_SCANNED_COMPAT} ]] && \
+		   ! just_headers && [[ ${CHOST} == ${CTARGET} ]] ; then
+			local fnames=""
+			einfo "Doing a scanelf in paths for bins containing the __uClibc_start_main symbol"
+			fnames=$(scanelf -pyqs__uClibc_start_main -F%F#s)
+			if [[ -z ${fnames} ]] ; then
+				einfo "This system is clean."
+				einfo "To prevent the scanning of files again in the future you can export UCLIBC_SCANNED_COMPAT=1"
+				moredefs=""
+			else
+				ewarn "You need to remerge the packages that contain the following files before you can remerge ${P} without USE=uclibc-compat enabled."
+				ewarn "qfile ${fnames}"
+				echo
+				ewarn "Leaving on ${moredefs}"
+			fi
+		else
+			moredefs=""
+		fi
+	fi
+	for def in ${moredefs} MALLOC_GLIBC_COMPAT DO_C99_MATH UCLIBC_HAS_{RPC,CTYPE_CHECKED,WCHAR,HEXADECIMAL_FLOATS,GLIBC_CUSTOM_PRINTF,FOPEN_EXCLUSIVE_MODE,GLIBC_CUSTOM_STREAMS,PRINTF_M_SPEC,FTW} ; do
+		sed -i -e "s:# ${def} is not set:${def}=y:" .config
+	done
+	echo "UCLIBC_HAS_FULL_RPC=y" >> .config
+	echo "PTHREADS_DEBUG_SUPPORT=y" >> .config
+	echo "UCLIBC_HAS_TZ_FILE_READ_MANY=n" >> .config
+
+	if use iconv ; then
+		sed -i -e "s:# UCLIBC_HAS_LOCALE is not set:UCLIBC_HAS_LOCALE=y:" .config
+		echo "UCLIBC_HAS_XLOCALE=n" >> .config
+		echo "UCLIBC_HAS_GLIBC_DIGIT_GROUPING=y" >> .config
+		echo "UCLIBC_HAS_SCANF_LENIENT_DIGIT_GROUPING=y" >> .config
+
+		if use nls ; then
+			echo "UCLIBC_HAS_GETTEXT_AWARENESS=y" >> .config
+		else
+			echo "UCLIBC_HAS_GETTEXT_AWARENESS=n" >> .config
+		fi
+
+		if use pregen ; then
+			echo "UCLIBC_PREGENERATED_LOCALE_DATA=y" >> .config
+			echo "UCLIBC_DOWNLOAD_PREGENERATED_LOCALE_DATA=y" >> .config
+			if use userlocales ; then
+				cp "${DISTDIR}"/${MY_P}-user-locale.tar.gz \
+					extra/locale/uClibc-locale-030818.tgz \
+					|| die "could not copy ${MY_P}-user-locale.tar.gz"
+			else
+				cp "${DISTDIR}"/${MY_P}-$(tc-arch)-full-locale.tar.gz \
+					extra/locale/uClibc-locale-030818.tgz \
+					|| die "could not copy locale"
+			fi
+		else
+			echo "UCLIBC_PREGENERATED_LOCALE_DATA=n" >> .config
+		fi
+	else
+		echo "UCLIBC_HAS_LOCALE=n" >> .config
+	fi
+
+	use ipv6 && sed -i -e "s:# UCLIBC_HAS_IPV6 is not set:UCLIBC_HAS_IPV6=y:" .config
+
+	# uncomment if you miss wordexp (alsa-lib)
+	use wordexp && sed -i -e "s:# UCLIBC_HAS_WORDEXP is not set:UCLIBC_HAS_WORDEXP=y:" .config
+
+	# we need to do it independently of hardened to get ssp.c built into libc
+	sed -i -e "s:# UCLIBC_SECURITY.*:UCLIBC_SECURITY=y:" .config
+	echo "UCLIBC_HAS_SSP=y" >> .config
+	echo "SSP_USE_ERANDOM=n" >> .config
+	echo "PROPOLICE_BLOCK_ABRT=n" >> .config
+	if use debug ; then
+		echo "PROPOLICE_BLOCK_SEGV=y" >> .config
+		echo "PROPOLICE_BLOCK_KILL=n" >> .config
+	else
+		echo "PROPOLICE_BLOCK_SEGV=n" >> .config
+		echo "PROPOLICE_BLOCK_KILL=y" >> .config
+	fi
+
+	# arm/mips do not emit PT_GNU_STACK, but if we enable this here
+	# it will be emitted as RWE, ppc has to be checked, x86 needs it
+	# this option should be used independently of hardened
+	# relro could be also moved out of hardened
+	if has $(tc-arch) x86 ; then
+		echo "UCLIBC_BUILD_NOEXECSTACK=y" >> .config
+	else
+		echo "UCLIBC_BUILD_NOEXECSTACK=n" >> .config
+	fi
+	echo "UCLIBC_BUILD_RELRO=y" >> .config
+	if use hardened ; then
+		if has $(tc-arch) ${PIE_STABLE} ; then
+			echo "UCLIBC_BUILD_PIE=y" >> .config
+		else
+			echo "UCLIBC_BUILD_PIE=n" >> .config
+		fi
+		echo "SSP_QUICK_CANARY=n" >> .config
+		echo "UCLIBC_BUILD_SSP=y" >> .config
+		echo "UCLIBC_BUILD_NOW=y" >> .config
+	else
+		echo "UCLIBC_BUILD_PIE=n" >> .config
+		echo "SSP_QUICK_CANARY=y" >> .config
+		echo "UCLIBC_BUILD_SSP=n" >> .config
+		echo "UCLIBC_BUILD_NOW=n" >> .config
+	fi
+
+	# Allow users some custom control over the config
+	if use savedconfig ; then
+		for conf in ${PN}-${PV}-${PR} ${PN}-${PV} ${PN}; do
+			configfile=${ROOT}/etc/${PN}/${CTARGET}/${conf}.config
+			einfo "Checking existence of ${configfile} ..."
+			[[ -r ${configfile} ]] || configfile=/etc/${PN}/${CHOST}/${conf}.config
+			if [[ -r ${configfile} ]] ; then
+				cp "${configfile}" "${S}"/.config
+				einfo "Found your ${configfile} and using it."
+				einfo "Note that this feature is *totally unsupported*."
+				break
+			fi
+		done
+	fi
+
+	# setup build and run paths
+	local cross=${CTARGET}-
+	type -p ${cross}ar > /dev/null || cross=""
+	sed -i \
+		-e "/^CROSS_COMPILER_PREFIX/s:=.*:=\"${cross}\":" \
+		-e "/^KERNEL_SOURCE/s:=.*:=\"$(alt_build_kprefix)\":" \
+		-e "/^SHARED_LIB_LOADER_PREFIX/s:=.*:=\"/$(get_libdir)\":" \
+		-e "/^DEVEL_PREFIX/s:=.*:=\"/usr\":" \
+		-e "/^RUNTIME_PREFIX/s:=.*:=\"/\":" \
+		.config || die
+
+	yes "" 2> /dev/null | make -s oldconfig > /dev/null || die "could not make oldconfig"
+
+	cp .config myconfig
+
+	emake -s clean > /dev/null || die "could not clean"
+}
+
+setup_locales() {
+	cd "${S}"/extra/locale
+	if use userlocales && [[ -f ${ROOT}/etc/locales.build ]] ; then
+		:;
+	elif use minimal ; then
+		find ./charmaps -name ASCII.pairs > codesets.txt
+		find ./charmaps -name ISO-8859-1.pairs >> codesets.txt
+		cat <<-EOF > locales.txt
+		@euro e
+		UTF-8 yes
+		8-bit yes
+		en_US ISO-8859-1
+		en_US.UTF-8 UTF-8
+		EOF
+	else
+		find ./charmaps -name '*.pairs' > codesets.txt
+		cp LOCALES locales.txt
+	fi
+	cd -
+}
+
+src_compile() {
+	cp myconfig .config
+
+	emake headers || die "make headers failed"
+	just_headers && return 0
+
+	if use iconv && ! use pregen ; then
+		cd extra/locale
+		make clean || die "make locale clean failed"
+		setup_locales
+		emake || die "make locales failed"
+		cd ../..
+	fi
+
+	emake || die "make failed"
+	if [[ ${CTARGET} != ${CHOST} ]] ; then
+		emake -C utils hostutils || die "make hostutils failed"
+	elif [[ ${CHOST} == *-uclibc ]] ; then
+		emake utils || die "make utils failed"
+	fi
+}
+
+src_test() {
+	[[ ${CHOST} != ${CTARGET} ]] && return 0
+	[[ ${CBUILD} != ${CHOST} ]] && return 0
+
+	# assert test fails on pax/grsec enabled kernels - normal
+	# vfork test fails in sandbox (both glibc/uclibc)
+	make UCLIBC_ONLY=1 check || die "test failed"
+}
+
+src_install() {
+	local sysroot=${D}
+	[[ ${CHOST} != ${CTARGET} ]] && sysroot="${sysroot}/usr/${CTARGET}"
+
+	local target="install"
+	just_headers && target="install_dev"
+	emake DESTDIR="${sysroot}" ${target} || die "install failed"
+
+	# remove files coming from kernel-headers
+	rm -rf "${sysroot}"/usr/include/{linux,asm*}
+
+	# Make sure we install the sys-include symlink so that when
+	# we build a 2nd stage cross-compiler, gcc finds the target
+	# system headers correctly.  See gcc/doc/gccinstall.info
+	if [[ ${CTARGET} != ${CHOST} ]] ; then
+		dosym usr/include /usr/${CTARGET}/sys-include
+		newbin utils/ldconfig.host ${CTARGET}-ldconfig || die
+		newbin utils/ldd.host ${CTARGET}-ldd || die
+		return 0
+	fi
+
+	if [[ ${CHOST} == *-uclibc ]] ; then
+		make DESTDIR="${D}" install_utils || die "install-utils failed"
+		dobin extra/scripts/getent
+	fi
+
+	if ! use build ; then
+		dodoc Changelog* README TODO docs/*.txt DEDICATION.mjn3
+		doman docs/man/*.[1-9]
+	fi
+}
+
+pkg_postinst() {
+	[[ ${CTARGET} != ${CHOST} ]] && return 0
+	[[ ${CHOST} != *-uclibc ]] && return 0
+
+	if [[ ! -e ${ROOT}/etc/TZ ]] ; then
+		ewarn "Please remember to set your timezone in /etc/TZ"
+		[[ ! -d ${ROOT}/etc ]] && mkdir -p "${ROOT}"/etc
+		echo "UTC" > "${ROOT}"/etc/TZ
+	fi
+
+	if [[ ${ROOT} == "/" ]] ; then
+		# update cache before reloading init
+		/sbin/ldconfig
+		# reload init ...
+		[[ -x /sbin/telinit ]] && /sbin/telinit U &> /dev/null
+	fi
+}