2014-11-01  Basile Starynkevitch  <basile@starynkevitch.net>
	* melt/warmelt-base.melt (multiple_sort): Check that
	hook_sort_compare_less is a hook...



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/melt-branch@217006 138bc75d-0d04-0410-961f-82ee72b054a4