From b143e34ee1bb56d104e33b78abff70302a93d3d0 Mon Sep 17 00:00:00 2001
From: Ebrahim Byagowi <ebrahim@gnu.org>
Date: Thu, 26 Mar 2020 11:58:45 +0430
Subject: [PATCH] [gsubgpos] Initialize variation index on HB_NO_VAR

hb_shape_plan_key_t::equal expects hb_ot_shape_plan_key_t be initialized by
hb_ot_layout_table_find_feature_variations calls but it won't get initialized
when HB_NO_VAR build config is used.

Related to https://github.com/harfbuzz/harfbuzz/issues/2280
---
 src/hb-ot-layout-gsubgpos.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hb-ot-layout-gsubgpos.hh b/src/hb-ot-layout-gsubgpos.hh
index 6487cb7ba..15a43b2d6 100644
--- a/src/hb-ot-layout-gsubgpos.hh
+++ b/src/hb-ot-layout-gsubgpos.hh
@@ -3054,6 +3054,7 @@ struct GSUBGPOS
 			      unsigned int *index) const
   {
 #ifdef HB_NO_VAR
+    *index = NOT_FOUND_INDEX;
     return false;
 #endif
     return (version.to_int () >= 0x00010001u ? this+featureVars : Null (FeatureVariations))