QVulkanWindow: fix fatal warning on Clang 4

qtbase/src/gui/vulkan/qvulkanwindow.cpp:1882:42: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
        VkClearColorValue clearColor = { 0.0f, 0.0f, 0.0f, 1.0f };
                                         ^~~~~~~~~~~~~~~~~~~~~~
                                         {                     }
1 error generated.

VkClearColorValue is a union, so it wants to be clear that we are
initializing only one of the union's members, apparently.
(Even though initing more than one wouldn't make sense.)

Change-Id: Id4afa3ddc1b4ce7e24e681fb93c0ee9083c41e08
Reviewed-by: Laszlo Agocs <laszlo.agocs@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/gui/vulkan/qvulkanwindow.cpp b/src/gui/vulkan/qvulkanwindow.cpp
index 53cee67e2f..82c157147c 100644
--- a/src/gui/vulkan/qvulkanwindow.cpp
+++ b/src/gui/vulkan/qvulkanwindow.cpp
@@ -1879,7 +1879,7 @@ void QVulkanWindowPrivate::beginFrame()
         renderer->startNextFrame();
         // done for now - endFrame() will get invoked when frameReady() is called back
     } else {
-        VkClearColorValue clearColor = { 0.0f, 0.0f, 0.0f, 1.0f };
+        VkClearColorValue clearColor = { { 0.0f, 0.0f, 0.0f, 1.0f } };
         VkClearDepthStencilValue clearDS = { 1.0f, 0 };
         VkClearValue clearValues[3];
         memset(clearValues, 0, sizeof(clearValues));