radv: mark const structs as extern in header file to avoid lto damage

The copr repo from che was using LTO and he reported radv broke
recently with it. When testing with lto builds here I noticed
that we weren't seeing any instance extensions reported.

It appears LTO was treating the const without extern as an empty
struct, this is possibly a gcc bug, but we can work around it
just by marking these with extern.

Acked-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
index dbe0ff4ac5a8ccab49e7f849cc06533dc9af0187..ec34551696e07268cfd7d4ee636c0433e9e33544 100644 (file)
--- a/src/amd/vulkan/radv_extensions.py
+++ b/src/amd/vulkan/radv_extensions.py
@@ -195,9 +195,9 @@ struct radv_device_extension_table {
    };
 };
 
-const VkExtensionProperties radv_instance_extensions[RADV_INSTANCE_EXTENSION_COUNT];
-const VkExtensionProperties radv_device_extensions[RADV_DEVICE_EXTENSION_COUNT];
-const struct radv_instance_extension_table radv_supported_instance_extensions;
+extern const VkExtensionProperties radv_instance_extensions[RADV_INSTANCE_EXTENSION_COUNT];
+extern const VkExtensionProperties radv_device_extensions[RADV_DEVICE_EXTENSION_COUNT];
+extern const struct radv_instance_extension_table radv_supported_instance_extensions;
 
 
 struct radv_physical_device;