[gtk: 1/2] Fix build issue due to missing VK_RESULT_RANGE_SIZE

[Emmanuele Bassi <ebassi src gnome org>]

commit 5c4ca1424d7d90a92f15579fe9d14fbb9952d7d7
Author: Adrian Perez de Castro <aperez igalia com>
Date:   Mon May 11 10:07:41 2020 +0300

    Fix build issue due to missing VK_RESULT_RANGE_SIZE
    
    Conditionally check whether the Vulkan headers version defines
    VK_RESULT_RANGE_SIZE, and avoid using it for version >=140. The
    following comming in Vulkan-Headers has removed the enum value:
    
      
https://github.com/KhronosGroup/Vulkan-Headers/commit/0c5351f5e9114d3e9033aeae51d036a3d201c082#diff-4febd94c0666d59030d8b1dd20c72403

 gdk/gdkvulkancontext.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/gdk/gdkvulkancontext.c b/gdk/gdkvulkancontext.c
index 7112e6724d..be249fcc25 100644
--- a/gdk/gdkvulkancontext.c
+++ b/gdk/gdkvulkancontext.c
@@ -223,7 +223,9 @@ gdk_vulkan_strerror (VkResult result)
     case VK_ERROR_PIPELINE_COMPILE_REQUIRED_EXT:
       return "A requested pipeline creation would have required compilation, but the application requested 
compilation to not be performed.";
 #endif
+#if VK_HEADER_VERSION < 140
     case VK_RESULT_RANGE_SIZE:
+#endif
     case VK_RESULT_MAX_ENUM:
     default:
       return "Unknown Vulkan error.";