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) {