I am working with an embedded Freescale P2020 based system. I cannot
seem to successfully compile the glibc-2.17 package. I am trying to
update glibc from package 2.15-r2. I have tried both gcc 4.6.3 and
4.7.3-r1. I am thinking about submitting a bug report but I thought I
would ask here first. I might also try again after updating the
portage packages.
Here is what I see when the compilation fails:
powerpc-e500v2-linux-gnuspe-gcc ../sysdeps/powerpc/fpu/fraiseexcpt.c
-c -std=gnu99 -fgnu89-inline -O2 -Wa,-me500x2 -Wall -Winline
-Wwrite-strings -fmerge-all-constants -fno-strict-aliasing
-freorder-blocks -frounding-math -mcpu=8548 -mfloat-gprs=double
-mspe=yes -mtune=8548 -pipe -mhard-float -Wstrict-prototypes
-mlong-double-128 -Wno-uninitialized -U_FORTIFY_SOURCE
-D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES -I../include
-I/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math
-I/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu
-I../sysdeps/powerpc/powerpc32/fpu
-I../nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../ports/sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../nptl/sysdeps/unix/sysv/linux/powerpc
-I../ports/sysdeps/unix/sysv/linux/powerpc
-I../sysdeps/unix/sysv/linux/powerpc -I../sysdeps/ieee754/ldbl-128ibm
-I../sysdeps/ieee754/ldbl-opt -I../nptl/sysdeps/unix/sysv/linux
-I../nptl/sysdeps/pthread -I../sysdeps/pthread
-I../ports/sysdeps/unix/sysv/linux -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/inet -I../nptl/sysdeps/unix/sysv
-I../ports/sysdeps/unix/sysv -I../sysdeps/unix/sysv
-I../sysdeps/unix/powerpc -I../nptl/sysdeps/unix
-I../ports/sysdeps/unix -I../sysdeps/unix -I../sysdeps/posix
-I../ports/sysdeps/powerpc/powerpc32 -I../sysdeps/powerpc/powerpc32
-I../sysdeps/wordsize-32 -I../sysdeps/powerpc/fpu
-I../nptl/sysdeps/powerpc -I../ports/sysdeps/powerpc
-I../sysdeps/powerpc -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic
-I../nptl -I../ports -I.. -I../libio -I. -nostdinc -isystem
/usr/lib/gcc/powerpc-e500v2-linux-gnuspe/4.7.3/include -isystem
/usr/lib/gcc/powerpc-e500v2-linux-gnuspe/4.7.3/include-fixed -isystem
/usr/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h
-DNOT_IN_libc=1 -DIS_IN_libm=1 -DIN_LIB=libm -o
/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o
-MD -MP -MF /var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o.dt
-MT /var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o
../sysdeps/powerpc/fpu/fclrexcpt.c: In function '__feclearexcept':
../sysdeps/powerpc/fpu/fclrexcpt.c:28:12: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fclrexcpt.c:35:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fclrexcpt.c:35:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fgetexcptflg.c: In function '__fegetexceptflag':
../sysdeps/powerpc/fpu/fgetexcptflg.c:28:12: error: impossible
constraint in 'asm'make[2]: ***
[/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fclrexcpt.o]
Error 1
make[2]: *** Waiting for unfinished jobs....
../sysdeps/powerpc/fpu/fraiseexcpt.c: In function '__feraiseexcept':
../sysdeps/powerpc/fpu/fraiseexcpt.c:34:12: error: impossible
constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:45:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:45:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:52:16: error: impossible
constraint in 'asm'
make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fgetexcptflg.o]
Error 1
make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o]
Error 1
make[2]: Leaving directory
`/var/tmp/portage/sys-libs/glibc-2.17/work/glibc-2.17/math'
make[1]: *** [math/others] Error 2
make[1]: Leaving directory
`/var/tmp/portage/sys-libs/glibc-2.17/work/glibc-2.17'
make: *** [all] Error 2
emake failed
* ERROR: sys-libs/glibc-2.17 failed (compile phase):
* make for default failed
*
* Call stack:
* ebuild.sh, line 93: Called src_compile
* environment, line 3080: Called eblit-run 'src_compile'
* environment, line 851: Called eblit-glibc-src_compile
* src_compile.eblit, line 267: Called toolchain-glibc_src_compile
* src_compile.eblit, line 166: Called die
* The specific snippet of code:
* emake || die "make for ${ABI} failed"
Here is some additional info:
# emerge --info
Portage 2.1.12.2 (default/linux/powerpc/ppc32/13.0, gcc-4.7.3,
glibc-2.15-r2, 3.0.4-xes_r7 ppc)
=================================================================
System uname: Linux-3.0.4-xes_r7-ppc-e500v2-with-gentoo-2.1
KiB Mem: 2072552 total, 735924 free
KiB Swap: 0 total, 0 free
Timestamp of tree: Wed, 09 Apr 2014 17:00:01 +0000
ld GNU ld (GNU Binutils) 2.22
app-shells/bash: 4.2_p37
dev-lang/python: 2.7.3-r2, 3.2.3
dev-util/pkgconfig: 0.27.1
sys-apps/baselayout: 2.1-r1
sys-apps/openrc: 0.10.4
sys-apps/sandbox: 2.6
sys-devel/autoconf: 2.68
sys-devel/automake: 1.11.6, 1.13.4
sys-devel/binutils: 2.22-r1
sys-devel/gcc: 4.6.3, 4.7.3-r1
sys-devel/gcc-config: 1.7.3
sys-devel/libtool: 2.4.2
sys-devel/make: 3.82-r3
sys-kernel/linux-headers: 3.1 (virtual/os-headers)
sys-libs/glibc: 2.15-r2::x-portage
Repositories: gentoo x-portage
ACCEPT_KEYWORDS="ppc"
ACCEPT_LICENSE="* -@EULA"
CBUILD="powerpc-e500v2-linux-gnuspe"
CFLAGS="-O2 -mcpu=8548 -mtune=8548 -mabi=spe -mspe=yes -Wa,-me500x2
-mfloat-gprs=double -pipe"
CHOST="powerpc-e500v2-linux-gnuspe"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf
/etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -mcpu=8548 -mtune=8548 -mabi=spe -mspe=yes -Wa,-me500x2
-mfloat-gprs=double -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified
distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch
preserve-libs protect-owned sandbox sfperms strict
unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org rsync://gentoo.xes-inc.com/20120925"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
--compress --force --whole-file --delete --stats --human-readable
--timeout=180 --exclude=/distfiles --exclude=/local
--exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="acl berkdb bzip2 cli cracklib crypt cxx dri fortran gdbm iconv
ipv6 modules ncurses nptl openmp pam pcre ppc readline session ssl
tcpd unicode zlib" ABI_PPC="32" ALSA_CARDS="aoa aoa-fabric-layout
aoa-onyx aoa-soundbus aoa-soundbus-i2s aoa-tas aoa-toonie powermac
usb-audio via82xx" APACHE2_MODULES="authn_core authz_core
socache_shmcb unixd actions alias auth_basic authn_alias authn_anon
authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache cgi
cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter
file_cache filter headers include info log_config logio mem_cache mime
mime_magic negotiation rewrite setenvif speling status unique_id
userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan
sheets stage tables krita karbon braindump author" CAMERAS="ptp2"
COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog"
ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18
garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver
oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip
tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev"
KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216
lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console
presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice"
PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7"
PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20"
USERLAND="GNU" VIDEO_CARDS="fbdev glint mach64 mga nv r128 radeon
savage tdfx trident dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan
length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit
sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG,
LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS,
PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
seem to successfully compile the glibc-2.17 package. I am trying to
update glibc from package 2.15-r2. I have tried both gcc 4.6.3 and
4.7.3-r1. I am thinking about submitting a bug report but I thought I
would ask here first. I might also try again after updating the
portage packages.
Here is what I see when the compilation fails:
powerpc-e500v2-linux-gnuspe-gcc ../sysdeps/powerpc/fpu/fraiseexcpt.c
-c -std=gnu99 -fgnu89-inline -O2 -Wa,-me500x2 -Wall -Winline
-Wwrite-strings -fmerge-all-constants -fno-strict-aliasing
-freorder-blocks -frounding-math -mcpu=8548 -mfloat-gprs=double
-mspe=yes -mtune=8548 -pipe -mhard-float -Wstrict-prototypes
-mlong-double-128 -Wno-uninitialized -U_FORTIFY_SOURCE
-D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES -I../include
-I/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math
-I/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/nptl
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu
-I../sysdeps/powerpc/powerpc32/fpu
-I../nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../ports/sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../sysdeps/unix/sysv/linux/powerpc/powerpc32
-I../nptl/sysdeps/unix/sysv/linux/powerpc
-I../ports/sysdeps/unix/sysv/linux/powerpc
-I../sysdeps/unix/sysv/linux/powerpc -I../sysdeps/ieee754/ldbl-128ibm
-I../sysdeps/ieee754/ldbl-opt -I../nptl/sysdeps/unix/sysv/linux
-I../nptl/sysdeps/pthread -I../sysdeps/pthread
-I../ports/sysdeps/unix/sysv/linux -I../sysdeps/unix/sysv/linux
-I../sysdeps/gnu -I../sysdeps/unix/inet -I../nptl/sysdeps/unix/sysv
-I../ports/sysdeps/unix/sysv -I../sysdeps/unix/sysv
-I../sysdeps/unix/powerpc -I../nptl/sysdeps/unix
-I../ports/sysdeps/unix -I../sysdeps/unix -I../sysdeps/posix
-I../ports/sysdeps/powerpc/powerpc32 -I../sysdeps/powerpc/powerpc32
-I../sysdeps/wordsize-32 -I../sysdeps/powerpc/fpu
-I../nptl/sysdeps/powerpc -I../ports/sysdeps/powerpc
-I../sysdeps/powerpc -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754 -I../sysdeps/generic
-I../nptl -I../ports -I.. -I../libio -I. -nostdinc -isystem
/usr/lib/gcc/powerpc-e500v2-linux-gnuspe/4.7.3/include -isystem
/usr/lib/gcc/powerpc-e500v2-linux-gnuspe/4.7.3/include-fixed -isystem
/usr/include -D_LIBC_REENTRANT -include ../include/libc-symbols.h
-DNOT_IN_libc=1 -DIS_IN_libm=1 -DIN_LIB=libm -o
/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o
-MD -MP -MF /var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o.dt
-MT /var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o
../sysdeps/powerpc/fpu/fclrexcpt.c: In function '__feclearexcept':
../sysdeps/powerpc/fpu/fclrexcpt.c:28:12: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fclrexcpt.c:35:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fclrexcpt.c:35:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fgetexcptflg.c: In function '__fegetexceptflag':
../sysdeps/powerpc/fpu/fgetexcptflg.c:28:12: error: impossible
constraint in 'asm'make[2]: ***
[/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fclrexcpt.o]
Error 1
make[2]: *** Waiting for unfinished jobs....
../sysdeps/powerpc/fpu/fraiseexcpt.c: In function '__feraiseexcept':
../sysdeps/powerpc/fpu/fraiseexcpt.c:34:12: error: impossible
constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:45:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:45:3: error: impossible constraint in 'asm'
../sysdeps/powerpc/fpu/fraiseexcpt.c:52:16: error: impossible
constraint in 'asm'
make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fgetexcptflg.o]
Error 1
make[2]: *** [/var/tmp/portage/sys-libs/glibc-2.17/work/build-default-powerpc-e500v2-linux-gnuspe-nptl/math/fraiseexcpt.o]
Error 1
make[2]: Leaving directory
`/var/tmp/portage/sys-libs/glibc-2.17/work/glibc-2.17/math'
make[1]: *** [math/others] Error 2
make[1]: Leaving directory
`/var/tmp/portage/sys-libs/glibc-2.17/work/glibc-2.17'
make: *** [all] Error 2
emake failed
* ERROR: sys-libs/glibc-2.17 failed (compile phase):
* make for default failed
*
* Call stack:
* ebuild.sh, line 93: Called src_compile
* environment, line 3080: Called eblit-run 'src_compile'
* environment, line 851: Called eblit-glibc-src_compile
* src_compile.eblit, line 267: Called toolchain-glibc_src_compile
* src_compile.eblit, line 166: Called die
* The specific snippet of code:
* emake || die "make for ${ABI} failed"
Here is some additional info:
# emerge --info
Portage 2.1.12.2 (default/linux/powerpc/ppc32/13.0, gcc-4.7.3,
glibc-2.15-r2, 3.0.4-xes_r7 ppc)
=================================================================
System uname: Linux-3.0.4-xes_r7-ppc-e500v2-with-gentoo-2.1
KiB Mem: 2072552 total, 735924 free
KiB Swap: 0 total, 0 free
Timestamp of tree: Wed, 09 Apr 2014 17:00:01 +0000
ld GNU ld (GNU Binutils) 2.22
app-shells/bash: 4.2_p37
dev-lang/python: 2.7.3-r2, 3.2.3
dev-util/pkgconfig: 0.27.1
sys-apps/baselayout: 2.1-r1
sys-apps/openrc: 0.10.4
sys-apps/sandbox: 2.6
sys-devel/autoconf: 2.68
sys-devel/automake: 1.11.6, 1.13.4
sys-devel/binutils: 2.22-r1
sys-devel/gcc: 4.6.3, 4.7.3-r1
sys-devel/gcc-config: 1.7.3
sys-devel/libtool: 2.4.2
sys-devel/make: 3.82-r3
sys-kernel/linux-headers: 3.1 (virtual/os-headers)
sys-libs/glibc: 2.15-r2::x-portage
Repositories: gentoo x-portage
ACCEPT_KEYWORDS="ppc"
ACCEPT_LICENSE="* -@EULA"
CBUILD="powerpc-e500v2-linux-gnuspe"
CFLAGS="-O2 -mcpu=8548 -mtune=8548 -mabi=spe -mspe=yes -Wa,-me500x2
-mfloat-gprs=double -pipe"
CHOST="powerpc-e500v2-linux-gnuspe"
CONFIG_PROTECT="/etc"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/gconf
/etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-O2 -mcpu=8548 -mtune=8548 -mabi=spe -mspe=yes -Wa,-me500x2
-mfloat-gprs=double -pipe"
DISTDIR="/usr/portage/distfiles"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-logs config-protect-if-modified
distlocks ebuild-locks fixlafiles merge-sync news parallel-fetch
preserve-libs protect-owned sandbox sfperms strict
unknown-features-warn unmerge-logs unmerge-orphans userfetch"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://distfiles.gentoo.org rsync://gentoo.xes-inc.com/20120925"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times
--compress --force --whole-file --delete --stats --human-readable
--timeout=180 --exclude=/distfiles --exclude=/local
--exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="acl berkdb bzip2 cli cracklib crypt cxx dri fortran gdbm iconv
ipv6 modules ncurses nptl openmp pam pcre ppc readline session ssl
tcpd unicode zlib" ABI_PPC="32" ALSA_CARDS="aoa aoa-fabric-layout
aoa-onyx aoa-soundbus aoa-soundbus-i2s aoa-tas aoa-toonie powermac
usb-audio via82xx" APACHE2_MODULES="authn_core authz_core
socache_shmcb unixd actions alias auth_basic authn_alias authn_anon
authn_dbm authn_default authn_file authz_dbm authz_default
authz_groupfile authz_host authz_owner authz_user autoindex cache cgi
cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter
file_cache filter headers include info log_config logio mem_cache mime
mime_magic negotiation rewrite setenvif speling status unique_id
userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan
sheets stage tables krita karbon braindump author" CAMERAS="ptp2"
COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog"
ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18
garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver
oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip
tripmate tnt ublox ubx" INPUT_DEVICES="keyboard mouse evdev"
KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216
lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console
presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice"
PHP_TARGETS="php5-5" PYTHON_SINGLE_TARGET="python2_7"
PYTHON_TARGETS="python2_7 python3_3" RUBY_TARGETS="ruby19 ruby20"
USERLAND="GNU" VIDEO_CARDS="fbdev glint mach64 mga nv r128 radeon
savage tdfx trident dummy v4l" XTABLES_ADDONS="quota2 psd pknock lscan
length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit
sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG,
LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS,
PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON