diff -up a2ps-4.15.5/liba2ps/darray.c.overrun-dynamic a2ps-4.15.5/liba2ps/darray.c
--- a2ps-4.15.5/liba2ps/darray.c.overrun-dynamic 2022-06-11 22:16:14.000000000 +0200
+++ a2ps-4.15.5/liba2ps/darray.c 2023-07-25 18:23:24.509882456 +0200
@@ -383,7 +383,7 @@ da_qsort (struct darray * arr)
jstack += 2;
/* Push pointers to larger subarry on stack.
* Process smaller subarrays now */
- if (jstack > QSORT_STACK)
+ if (jstack >= QSORT_STACK)
error (da_exit_error, 0, "da_qsort: QSORT_STACK too small (%d)",
QSORT_STACK);
if (ir - i + 1 >= j - l) {
@@ -461,7 +461,7 @@ da_qsort_with_arg (struct darray * arr,
jstack += 2;
/* Push pointers to larger subarry on stack.
* Process smaller subarrays now */
- if (jstack > QSORT_STACK)
+ if (jstack >= QSORT_STACK)
error (da_exit_error, 0, "da_qsort: QSORT_STACK too small (%d)",
QSORT_STACK);
if (ir - i + 1 >= j - l) {