From c47b4f6993f1cd7fb346f0e09a0fabb0a158039b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Fri, 22 Feb 2019 14:16:17 +0100
Subject: [PATCH] cairo-context: Special-case 0-sized vector

---
 modules/cairo-context.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/cairo-context.cpp b/modules/cairo-context.cpp
index e77bde16..35d798a6 100644
--- a/modules/cairo-context.cpp
+++ b/modules/cairo-context.cpp
@@ -582,7 +582,10 @@ setDash_func(JSContext *context,
         dashes_c.push_back(b);
     }
 
-    cairo_set_dash(cr, &dashes_c[0], dashes_c.size(), offset);
+    if (dashes_c.size() == 0)
+        cairo_set_dash(cr, NULL, 0, offset);
+    else
+        cairo_set_dash(cr, &dashes_c[0], dashes_c.size(), offset);
     argv.rval().setUndefined();
     return true;
 }
-- 
2.20.1