ltcf-gcj.sh: Upgraded to libtool 1.4a 1.641.2.254.  Rebuilt a number
of subdir/configure scripts to use the new libtool.m4.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@42351 138bc75d-0d04-0410-961f-82ee72b054a4