高手看看我安装courier-authlib的错误信息

reglinux

执行:emerge courier-authlib
然后出错,内容为:
Linking libauthpam.la
nm:libmisc.a:File format not recognized
nm:libmisc.a:File format not recognized
/usr/lib/libshadow.a:member /usr/lib/libshadow.a(libmisc.a) in archive is not an object
collect2:ld returned 1 exit status
make[2]:*** [libauthpam.la] Error 1
make[2]:*** Waiting for unfinished jobs....
make[2]eaving directory '/var/tmp/portage/courier-authlib-0.57-r1/work/courier-authlib-0.57'
make[1]:***[all-recursive] Error 1
make[1]eaving directory '/var/tmp/portage/courier-authlib-0.57-r1/work/courier-authlib-0.57'
make: *** [all] Error 2
!!! ERROR:net-libs/courier-authlib-0.57-r1 failed.
!!! Function src_compile, Line 101,Exitcode 2
!!! Compile problem
!!! If you need support,post the topmost build error,NOT this status message.