[gentoo-alt] Problems after upgrading gcc

[JC D]

Hi!
I am using gentoo_prefix on a Mac OS 10.10. with prefix=/gentoo.
After bootstrapping gcc-apple-4.2.1-r2 was the default gcc compiler.
I wanted to upgrade to a more recent gcc - in particular gcc-4.7.3.
$ emerge -av gcc gcc-config
$ gcc-config gcc-config x86_64-apple-darwin14-4.7.3However, I get this:
$ gcc --version
Segmentation fault: 11
Then I did:
$ emerge --oneshot -av libtool
$ emerge -eav systemHere 3 packages fail to rebuild/emerge:csu-79gettextgcc-apple

I tried to mask csu-79 but then I get the following:
The following mask changes are necessary to proceed:
 (see "package.unmask" in the portage(5) man page for more details)
# required by sys-devel/gcc-apple-4.2.1_p5666-r1
# required by sys-devel/binutils-apple-4.3
# required by sys-devel/gcc-4.7.3-r1
# required by @selected
# required by @world (argument)
# /gentoo/etc/portage/package.mask/csu:
=sys-libs/csu-79

The following mask changes are necessary to proceed:
 (see "package.unmask" in the portage(5) man page for more details)
# required by @system
# required by @world (argument)
# /gentoo/etc/portage/package.mask/csu:
=sys-libs/csu-79So very basic packages can not build without csu-97.
Here I stuck. What can I do? The aim of the whole process is to finally get sage-on-gentoo (overlay) installed, which requires a more recent gcc.

There is a more up-to-date version of csu on OS X 10.10 - Source for csu-85. Is there a chance that this will be upgraded on gentoo?

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Here are the emerge --info and logs (url):
$ emerge --info '=sys-libs/csu-79::gentoo_prefix'
Portage 2.2.14-prefix (python 3.3.3-final-0, prefix/darwin/macos/10.10/x64, gcc-4.7.3, unavailable, 14.0.0 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Darwin-14.0.0-x86_64-i386-64bit
Timestamp of tree: Sat, 17 Jan 2015 19:08:58 +0000
app-shells/bash:      4.2_p53
dev-lang/perl:        5.20.1-r4
dev-lang/python:      2.7.8, 3.3.3
dev-util/cmake:       3.0.2
dev-util/pkgconfig:   0.28-r2
sys-devel/autoconf:   2.69
sys-devel/automake:   1.14.1
sys-devel/gcc:        4.7.3-r1
sys-devel/gcc-config: 1.8-r1
sys-devel/libtool:    2.4.2-r1
sys-devel/make:       4.1-r1
Repositories: gentoo_prefix sage-on-gentoo sci-mathematics
ACCEPT_KEYWORDS="~x64-macos"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-apple-darwin14"
CFLAGS="-march=nocona -O2 -pipe"
CHOST="x86_64-apple-darwin14"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=nocona -O2 -pipe"
DISTDIR="/gentoo/usr/portage/distfiles"
FCFLAGS=""
FEATURES="assume-digests binpkg-logs case-insensitive-fs collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles force-prefix merge-sync news nostrip parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans"
FFLAGS=""
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="de_DE.UTF-8"
LDFLAGS="-Wl,-dead_strip_dylibs"
MAKEOPTS="-j3"
PKGDIR="/gentoo/usr/portage/packages"
PORTAGE_CONFIGROOT="/gentoo/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/gentoo/var/tmp"
PORTDIR="/gentoo/usr/portage"
PORTDIR_OVERLAY="/gentoo/var/lib/layman/sage-on-gentoo /gentoo/usr/local/portage"
USE="aqua coreaudio cracklib cxx fontconfig ipv6 mmx mmxext modules ncurses nls objc objc++ prefix prefix-guest readline sse sse2 ssl unicode x64-macos zlib" 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="Darwin" 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" KERNEL="Darwin" 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" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

sys-libs/csu-79 was built with the following:
USE="(prefix) (prefix-guest)"
$ emerge -pqv '=sys-libs/csu-79::gentoo_prefix'
[ebuild   R   ] sys-libs/csu-79
Here is the log: csu-79.build.log - Datei über Box freigegeben

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Also gettext can not be compiled:$ emerge --info '=sys-devel/gettext-0.19.4_rc1::gentoo_prefix'
Portage 2.2.14-prefix (python 3.3.3-final-0, prefix/darwin/macos/10.10/x64, gcc-4.7.3, unavailable, 14.0.0 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Darwin-14.0.0-x86_64-i386-64bit
Timestamp of tree: Sat, 17 Jan 2015 19:08:58 +0000
app-shells/bash:      4.2_p53
dev-lang/perl:        5.20.1-r4
dev-lang/python:      2.7.8, 3.3.3
dev-util/cmake:       3.0.2
dev-util/pkgconfig:   0.28-r2
sys-devel/autoconf:   2.69
sys-devel/automake:   1.14.1
sys-devel/gcc:        4.7.3-r1
sys-devel/gcc-config: 1.8-r1
sys-devel/libtool:    2.4.2-r1
sys-devel/make:       4.1-r1
Repositories: gentoo_prefix sage-on-gentoo sci-mathematics
ACCEPT_KEYWORDS="~x64-macos"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-apple-darwin14"
CFLAGS="-march=nocona -O2 -pipe"
CHOST="x86_64-apple-darwin14"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=nocona -O2 -pipe"
DISTDIR="/gentoo/usr/portage/distfiles"
FCFLAGS=""
FEATURES="assume-digests binpkg-logs case-insensitive-fs collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles force-prefix merge-sync news nostrip parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans"
FFLAGS=""
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="de_DE.UTF-8"
LDFLAGS="-Wl,-dead_strip_dylibs"
MAKEOPTS="-j3"
PKGDIR="/gentoo/usr/portage/packages"
PORTAGE_CONFIGROOT="/gentoo/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/gentoo/var/tmp"
PORTDIR="/gentoo/usr/portage"
PORTDIR_OVERLAY="/gentoo/var/lib/layman/sage-on-gentoo /gentoo/usr/local/portage"
USE="aqua coreaudio cracklib cxx fontconfig ipv6 mmx mmxext modules ncurses nls objc objc++ prefix prefix-guest readline sse sse2 ssl unicode x64-macos zlib" 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="Darwin" 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" KERNEL="Darwin" 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" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON
$ emerge -pqv '=sys-devel/gettext-0.19.4_rc1::gentoo_prefix'
[ebuild     U ] sys-devel/gettext-0.19.4_rc1 [0.19.3] USE="cxx ncurses nls (-acl) -cvs -doc -emacs -git -java -openmp -static-libs"
The log can be found here: gettext-0.19.4.build.log - Datei über Box freigegeben

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| gettext-0.19.4.build.log - Datei über Box freigegebenHerunterladen (152.3KB) Registrieren | Anmelden gettext-0.19.4.build.log  |
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  Furthermore the gcc-apple can not be recompiled.ERROR: sys-devel/gcc-apple-4.2.1_p5666-r2::gentoo_prefix failed (compile phase):
 *   emake failed
$ emerge --info '=sys-devel/gcc-apple-4.2.1_p5666-r2::gentoo_prefix'
Portage 2.2.14-prefix (python 3.3.3-final-0, prefix/darwin/macos/10.10/x64, gcc-4.7.3, unavailable, 14.0.0 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Darwin-14.0.0-x86_64-i386-64bit
Timestamp of tree: Sat, 17 Jan 2015 19:08:58 +0000
app-shells/bash:      4.2_p53
dev-lang/perl:        5.20.1-r4
dev-lang/python:      2.7.8, 3.3.3
dev-util/cmake:       3.0.2
dev-util/pkgconfig:   0.28-r2
sys-devel/autoconf:   2.69
sys-devel/automake:   1.14.1
sys-devel/gcc:        4.7.3-r1
sys-devel/gcc-config: 1.8-r1
sys-devel/libtool:    2.4.2-r1
sys-devel/make:       4.1-r1
Repositories: gentoo_prefix sage-on-gentoo sci-mathematics
ACCEPT_KEYWORDS="~x64-macos"
ACCEPT_LICENSE="* -@EULA"
CBUILD="x86_64-apple-darwin14"
CFLAGS="-march=nocona -O2 -pipe"
CHOST="x86_64-apple-darwin14"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo"
CXXFLAGS="-march=nocona -O2 -pipe"
DISTDIR="/gentoo/usr/portage/distfiles"
FCFLAGS=""
FEATURES="assume-digests binpkg-logs case-insensitive-fs collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles force-prefix merge-sync news nostrip parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans"
FFLAGS=""
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="de_DE.UTF-8"
LDFLAGS="-Wl,-dead_strip_dylibs"
MAKEOPTS="-j3"
PKGDIR="/gentoo/usr/portage/packages"
PORTAGE_CONFIGROOT="/gentoo/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/gentoo/var/tmp"
PORTDIR="/gentoo/usr/portage"
PORTDIR_OVERLAY="/gentoo/var/lib/layman/sage-on-gentoo /gentoo/usr/local/portage"
USE="aqua coreaudio cracklib cxx fontconfig ipv6 mmx mmxext modules ncurses nls objc objc++ prefix prefix-guest readline sse sse2 ssl unicode x64-macos zlib" 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="Darwin" 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" KERNEL="Darwin" 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" 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, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, SYNC, USE_PYTHON

=================================================================
                        Package Settings
=================================================================

sys-devel/gcc-apple-4.2.1_p5666-r2 was built with the following:
USE="cxx fortran nls nptl objc objc++ openmp (prefix) (prefix-guest) -multislot -regression-test -vanilla"
CFLAGS="-O2 -pipe"
CXXFLAGS="-O2 -pipe"

$ emerge -pqv '=sys-devel/gcc-apple-4.2.1_p5666-r2::gentoo_prefix'
[ebuild     U ] sys-devel/gettext-0.19.4_rc1 [0.19.3] USE="cxx ncurses nls (-acl) -cvs -doc -emacs -git -java -openmp -static-libs" 
[ebuild   R   ] sys-devel/gcc-apple-4.2.1_p5666-r2  USE="cxx fortran nls nptl objc objc++ openmp -multislot -regression-test -vanilla" 

Here is the log file: gcc-apple-4.2.1.build.log - Datei über Box freigegeben
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It seems that these 3 packages prevent each other from rebuilding. What can I do?

Thank you for your help.