[Mesa-dev] [PATCH] radv: mark const structs as extern in header file to avoid lto damage

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

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.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 src/amd/vulkan/radv_extensions.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/amd/vulkan/radv_extensions.py b/src/amd/vulkan/radv_extensions.py
index db37d617f9..ae9396c43a 100644
--- a/src/amd/vulkan/radv_extensions.py
+++ b/src/amd/vulkan/radv_extensions.py
@@ -199,9 +199,9 @@ 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;
-- 
2.14.3