Mesa (master): radv: mark const structs as extern in header file to avoid lto damage

[Dave Airlie]

Module: Mesa
Branch: master
Commit: a8420e253038fd4ef063af4ee370038075ee7aeb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a8420e253038fd4ef063af4ee370038075ee7aeb

Author: Dave Airlie <airlied at redhat.com>
Date:   Fri Apr 13 12:40:55 2018 +1000

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 at gmail.com>
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 dbe0ff4ac5..ec34551696 100644
--- 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;