[gentoo-user] How to force regeneration of eclasses

[Helmut Jarausch]

Hi,

I have a broken system. Several packages fail to re-emerge with

  *   environment, line 3025:  Called gen_usr_ldscript '-a' 'gpm'
  *   environment, line 1910:  Called die
  * The specific snippet of code:
  *                           mv "${ED}"/usr/${libdir}/${tlib}*  
"${ED}"/${libdir}/ || die;


Has anybody seen this message?

gen_usr_ldscript is defined in  
/usr/portage/eclass/toolchain-funcs.eclass

qfile doesn't find any package which has installed this file.

How can I force the re-installation of (all) eclasses?

Many thanks for a hint,
Helmut