From 4d322a97e19a2b35ee6adda9bad2418c55777923 Mon Sep 17 00:00:00 2001
From: Camilla Berglund <elmindreda@glfw.org>
Date: Mon, 7 Nov 2016 19:43:15 +0100
Subject: [PATCH] Fix Vulkan extension count when none were found

---
 src/vulkan.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/vulkan.c b/src/vulkan.c
index c39711b6..1123bb22 100644
--- a/src/vulkan.c
+++ b/src/vulkan.c
@@ -237,6 +237,9 @@ GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count)
     if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
         return NULL;
 
+    if (!_glfw.vk.extensions[0])
+        return NULL;
+
     *count = 2;
     return (const char**) _glfw.vk.extensions;
 }