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-rw-r--r--generic/tclInt.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/generic/tclInt.h b/generic/tclInt.h
index b892a7b..06ec2ad 100644
--- a/generic/tclInt.h
+++ b/generic/tclInt.h
@@ -2500,6 +2500,9 @@ typedef struct ListSpan {
ListSizeT spanLength; /* Number of elements in the span */
int refCount; /* Count of references to this span record */
} ListSpan;
+#ifndef LIST_SPAN_THRESHOLD /* May be set on build line */
+#define LIST_SPAN_THRESHOLD 101
+#endif
/*
* ListRep --