fail (one even with a segfault) with CVS guile before the recent
changes to libguile/sort.c.
* libguile/sort.c: Replaced hand-made trampline code by the new
official mechanism from eval.c. This fixes a segfault in the new
test file test-suite/tests/sort.test.
(quicksort, compare_function, scm_restricted_vector_sort_x,
scm_sorted_p, scm_merge, scm_merge_list_x, scm_merge_x,
scm_merge_list_step, scm_sort_x, scm_sort, scm_merge_vector_x,
scm_merge_vector_step, scm_stable_sort_x, scm_stable_sort,
scm_sort_list_x, scm_sort_list): Use trampoline mechanism from
eval.c.
(subr2less, lsubrless, closureless, applyless, scm_cmp_function,
cmp_fun_t): Removed.
(compare_function): Added.
* libguile/sort.c (quicksort, SWAP, stack_node): Replaced pointer
arithmetics with index arithmetics. Changed quicksort to work on
an array of SCM values instead of an array of characters. Avoid
bytewise copying of SCM elements. Avoid allocating memory on the
stack with alloca. Fixed some comments.
