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-rw-r--r--src/feature.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/feature.h b/src/feature.h
index 6b8f600ec0..61fe3345bb 100644
--- a/src/feature.h
+++ b/src/feature.h
@@ -1275,3 +1275,11 @@
|| defined(FEAT_BIG)
# define FEAT_AUTOCHDIR
#endif
+
+/*
+ * +persistent_undo 'undofile', 'undodir' options, :wundo and :rundo, and
+ * implementation.
+ */
+#ifdef FEAT_NORMAL
+# define FEAT_PERSISTENT_UNDO
+#endif