Mesa (main): softpipe: Add a dummy field to sp_fragment_shader_variant_key

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Module: Mesa
Branch: main
Commit: d87a089579948e5063010d79d22b29005616699f
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=d87a089579948e5063010d79d22b29005616699f

Author: Jesse Natalie <jenatali at microsoft.com>
Date:   Mon Dec 27 11:09:05 2021 -0800

softpipe: Add a dummy field to sp_fragment_shader_variant_key

MSVC doesn't support 0-size structs in C.

Fixes: 0b7a0d1a ("softpipe: Use the draw module's poly stipple handling, like llvmpipe.")
Reviewed-by: Emma Anholt <emma at anholt.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14312>

---

 src/gallium/drivers/softpipe/sp_state.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/gallium/drivers/softpipe/sp_state.h b/src/gallium/drivers/softpipe/sp_state.h
index 4914b11cba8..63f6994bbc4 100644
--- a/src/gallium/drivers/softpipe/sp_state.h
+++ b/src/gallium/drivers/softpipe/sp_state.h
@@ -64,6 +64,8 @@ struct vertex_info;
 
 struct sp_fragment_shader_variant_key
 {
+   /* Standard C doesn't allow 0-size structs */
+   int dummy;
 };