安装busybox出错

准备从stage3开始重新安装gentoo,但到busybox这里一直过不去

emerge -ev system　
....




>>> Emerging (12 of 31) sys-apps/busybox-1.2.2.1 to /
>>> Downloading 'http://61.135.158.199/distfiles/busybox-1.2.2.1.tar.bz2'
--10:53:38-- http://61.135.158.199/distfiles/busybox-1.2.2.1.tar.bz2
=> `/usr/portage/distfiles/busybox-1.2.2.1.tar.bz2'
Connecting to 61.135.158.199:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 1,413,458 (1.3M) [application/x-tar]

100%[========================================================================================>] 1,413,458 94.92K/s ETA 00:00

10:53:50 (107.16 KB/s) - `/usr/portage/distfiles/busybox-1.2.2.1.tar.bz2' saved [1413458/1413458]

>>> Unpacking source...
>>> Unpacking busybox-1.2.2.1.tar.bz2 to /var/tmp/portage/busybox-1.2.2.1/work
* Applying bb.patch ... [ ok ]
* Applying gcc2.patch ... [ ok ]
* # CONFIG_DMALLOC is not set
* # CONFIG_FEATURE_SUID_CONFIG is not set
* # CONFIG_BUILD_AT_ONCE is not set
* # CONFIG_BUILD_LIBBUSYBOX is not set
* CONFIG_FEATURE_SH_IS_ASH=y
* # CONFIG_FEATURE_SH_IS_NONE is not set
* # CONFIG_STATIC is not set
* # CONFIG_DEBUG is not set
* # CONFIG_SELINUX is not set
* # CONFIG_LOCALE_SUPPORT is not set
* # CONFIG_TFTP is not set
* # CONFIG_FTPGET is not set
* # CONFIG_FTPPUT is not set
* # CONFIG_IPCALC is not set
* # CONFIG_TFTP is not set
* # CONFIG_HUSH is not set
* # CONFIG_LASH is not set
* # CONFIG_MSH is not set
* # CONFIG_INETD is not set
* # CONFIG_DPKG is not set
* # CONFIG_RPM2CPIO is not set
* # CONFIG_RPM is not set
* # CONFIG_FOLD is not set
* # CONFIG_LOGNAME is not set
* # CONFIG_OD is not set
* # CONFIG_CRONTAB is not set
* # CONFIG_UUDECODE is not set
* # CONFIG_UUENCODE is not set
* # CONFIG_SULOGIN is not set
* # CONFIG_DC is not set
* # CONFIG_DEBUG_YANK_SUSv2 is not set
* # CONFIG_DEBUG_INIT is not set
* # CONFIG_DEBUG_CROND_OPTION is not set
* # CONFIG_FEATURE_UDHCP_DEBUG is not set
>>> Source unpacked.
>>> Compiling source in /var/tmp/portage/busybox-1.2.2.1/work/busybox-1.2.2.1 ...
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
i686-pc-linux-gnu-ar: conftest.o: No such file or directory
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
i686-pc-linux-gnu-ar: conftest.o: No such file or directory
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
i686-pc-linux-gnu-ar: conftest.o: No such file or directory
/bin/sh: i686-pc-linux-gnu-gcc: command not found
/bin/sh: i686-pc-linux-gnu-gcc: command not found
i686-pc-linux-gnu-ar: conftest.o: No such file or directory
HOSTLINK scripts/bb_mkdep
HOSTLINK scripts/usage
GEN include/bbconfigopts.h
GEN .depend
CC applets/applets.o
/bin/sh: i686-pc-linux-gnu-gcc: command not found
make: *** [/var/tmp/portage/busybox-1.2.2.1/work/busybox-1.2.2.1/applets/applets.o] Error 127

!!! ERROR: sys-apps/busybox-1.2.2.1 failed.
Call stack:
ebuild.sh, line 1546: Called dyn_compile
ebuild.sh, line 937: Called src_compile
busybox-1.2.2.1.ebuild, line 176: Called die

!!! build failed
!!! If you need support, post the topmost build error, and the call stack if relevant.



请问这是什么原因啊
用的是stage3-x86-2006.0.tar 　

/etc/make.conf

#CFLAGS="-O2 -mtune=i686 -pipe"
#CHOST="i386-pc-linux-gnu"
#CXXFLAGS="-O2 -mtune=i686 -pipe"

CHOST="i686-pc-linux-gnu"
CFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer"
CXXFLAGS="-march=pentium4 -O2 -pipe -fomit-frame-pointer"


LINGUAS="zh_CN en"
MAKEOPTS="-j2"
PORTAGE_NICENESS="10"
PORTAGE_TMPFS="/dev/shm"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
GENTOO_MIRRORS="61.135.158.199"

gcc-config -l的结果是什么？

gcc-config -l
[1] i386-pc-linux-gnu-3.4.4 *
[2] i386-pc-linux-gnu-3.4.4-hardened
[3] i386-pc-linux-gnu-3.4.4-hardenednopie
[4] i386-pc-linux-gnu-3.4.4-hardenednopiessp
[5] i386-pc-linux-gnu-3.4.4-hardenednossp
[6] i686-pc-linux-gnu-4.1.1