emerge -u world 报错

slo

:ask

我emerge sync之后使用
emerge －u world
系统提示 /etc/make.profile link不对。
ebulite ~ # emerge -u world
!!! ARCH is not set... Are you missing the /etc/make.profile symlink?
!!! Is the symlink correct? Is your portage tree complete?

我试着链接了几个/usr/portage/profiles下的目录到/etc/,作为make.profile

Nebulite profiles # ln -s ./default-x86-2004.2/ /etc/make.profile

但还是报错：
Nebulite profiles # emerge -u world
!!! ARCH is not set... Are you missing the /etc/make.profile symlink?
!!! Is the symlink correct? Is your portage tree complete?

我该如何处理这个make.profile的链接，我的Gentoo是用的Gentoo2005安装的

laonainai

/etc/make.conf中的
  CFLAGS="-mcpu=..."
选项设了吗？