Проблема с компиляцией[Solved]

Что то случилось с системой и она перестала собираться

#include <iostream>

int main()
{
 return 0;
}

при попытке скомпилить вот этот код получается куча ошибок, вот только часть из них

gcc test.cpp 
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/x86_64-pc-linux-gnu/bits/os_defines.h:39,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/x86_64-pc-linux-gnu/bits/c++config.h:243,
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/iostream:39,                             
                 from test.cpp:1:                                                                                    
/usr/include/features.h:347:25: error: sys/cdefs.h: No such file or directory                                        
In file included from /usr/include/wchar.h:37,                                                                       
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/cwchar:47,                               
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/bits/postypes.h:42,                      
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/iosfwd:42,                               
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/ios:39,                                  
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/ostream:40,                              
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/iostream:40,                             
                 from test.cpp:1:                                                                                    
/usr/include/stdio.h:49: error: expected constructor, destructor, or type conversion before 'typedef'                
/usr/include/stdio.h:50: error: '__END_NAMESPACE_STD' does not name a type                                           
In file included from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/cwchar:47,                               
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/bits/postypes.h:42,                      
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/iosfwd:42,                               
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/ios:39,                                  
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/ostream:40,                              
                 from /usr/lib/gcc/x86_64-pc-linux-gnu/4.4.2/include/g++-v4/iostream:40,  

хотелось бы разобраться, надеюсь на помощь
P.S
соотвественно собрать какой либо пакет тоже не удаётся
P.S.S

emerge --info
Portage 2.1.7.5 (default/linux/amd64/10.0/desktop, gcc-4.4.2, glibc-2.11-r0, 2.6.31-zen8 x86_64)
=================================================================                               
System uname:   
Timestamp of tree: Fri, 20 Nov 2009 18:00:22 +0000                                              
app-shells/bash:     4.0_p35                                                                    
dev-java/java-config: 2.1.9-r1                                                                  
dev-lang/python:     2.6.4, 3.1.1-r1                                                            
dev-util/cmake:      2.8.0                                                                      
sys-apps/baselayout: 2.0.1                                                                      
sys-apps/openrc:     0.5.2-r2                                                                   
sys-apps/sandbox:    2.2                                                                        
sys-devel/autoconf:  2.13, 2.63-r1                                                              
sys-devel/automake:  1.8.5-r3, 1.9.6-r2, 1.10.2, 1.11                                           
sys-devel/binutils:  2.20                                                                       
sys-devel/gcc-config: 1.4.1                                                                     
sys-devel/libtool:   2.2.6b                                                                     
virtual/os-headers:  2.6.30-r1                                                                  
ACCEPT_KEYWORDS="amd64 ~amd64"                                                                  
ACCEPT_LICENSE="* -@EULA"                                                                       
CBUILD="x86_64-pc-linux-gnu"                                                                    
CFLAGS="-march=native -msse3 -O2 -fomit-frame-pointer -pipe"                                    
CHOST="x86_64-pc-linux-gnu"                                                                     
CONFIG_PROTECT="/etc /usr/share/X11/xkb /usr/share/config"                                      
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/udev/rules.d"                                                         
CXXFLAGS="-march=native -msse3 -O2 -fomit-frame-pointer -pipe"                                                                
DISTDIR="/usr/portage/distfiles"                                                                                              
FEATURES="assume-digests candy distlocks fixpackages news parallel-fetch prelink protect-owned sandbox sfperms strict unmerge-logs unmerge-orphans userfetch"                                                                                               
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"                         
LANG="en_EN.UTF-8"                                                                                                            
LDFLAGS="-Wl,-O1"                                                                                                             
LINGUAS="ru en"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="X a52 aac acl acpi aiglx alsa amd64 avahi berkdb bluetooth branding bzip2 cairo cdr cleartype cli consolekit cracklib crypt cups dbus dri dts dvd dvdr dvdread eds embedded emboss encode evo extras firefox flac fortran gdbm gif gnome gpm gstreamer gtk hal iconv jpeg kde ldap libnotify lm_sensors mad mikmod mmx modules mp3 mp4 mpeg mudflap multilib mysql ncurses nls nptl nptlonly nsplugin ogg opengl openmp pam pcre pdf perl png ppds pppd pulseaudio python qt3 qt3support qt4 quicktime readline reflection sdl session spell spl sql sse sse2 sse3 ssl startup-notification svg sysfs tcpd thunar tiff truetype unicode usb vorbis webkit x264 xcomposite xml xorg xulrunner xv xvid xvmc zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="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 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" ELIBC="glibc" INPUT_DEVICES="keyboard mouse evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="ru en" USERLAND="GNU" VIDEO_CARDS="intel vmvare"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY