From e33b672ff4ab1b7469355a79eaf4c4740f412e45 Mon Sep 17 00:00:00 2001
From: "Andrew J. Schorr" <aschorr@telemetry-investments.com>
Date: Wed, 11 Jul 2012 09:34:46 -0400
Subject: Patch API sym_update to accept AWK_UNDEFINED for "".

---
 gawkapi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'gawkapi.c')

diff --git a/gawkapi.c b/gawkapi.c
index ad82f6fa..3fa3e3ba 100644
--- a/gawkapi.c
+++ b/gawkapi.c
@@ -468,6 +468,7 @@ api_sym_update(awk_ext_id_t id, const char *name, awk_value_t *value)
 	switch (value->val_type) {
 	case AWK_STRING:
 	case AWK_NUMBER:
+	case AWK_UNDEFINED:
 		if (node->type == Node_var || node->type == Node_var_new) {
 			unref(node->var_value);
 			node->var_value = awk_value_to_node(value);
@@ -477,7 +478,6 @@ api_sym_update(awk_ext_id_t id, const char *name, awk_value_t *value)
 		break;
 
 	case AWK_ARRAY:
-	case AWK_UNDEFINED:
 		return false;	/* not allowed */
 	}
 
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