[OE-core] [PATCH] mesa: Fix build with vulkan on non-x86

[Jussi Kukkonen]

The intel vulkan driver requires libdrm-intel: Only enable it when
building for x86 or x86-64 similar to DRI drivers.

Building on non-x86* with vulkan leads to "--with-vulkan-drivers= ":
this is interpreted correctly by the build system.

Signed-off-by: Jussi Kukkonen <jussi.kukkonen at intel.com>
---
 meta/recipes-graphics/mesa/mesa.inc | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
index 45361c7..3bb3cf4 100644
--- a/meta/recipes-graphics/mesa/mesa.inc
+++ b/meta/recipes-graphics/mesa/mesa.inc
@@ -51,7 +51,10 @@ PACKAGECONFIG[dri3] = "--enable-dri3, --disable-dri3, dri3proto presentproto lib
 
 # Vulkan drivers need dri3 enabled
 # radeon could be enabled as well but requires gallium-llvm with llvm >= 3.9
-PACKAGECONFIG[vulkan] = "--with-vulkan-drivers=intel, --without-vulkan-drivers"
+VULKAN_DRIVERS = ""
+VULKAN_DRIVERS_append_x86 = ",intel"
+VULKAN_DRIVERS_append_x86-64 = ",intel"
+PACKAGECONFIG[vulkan] = "--with-vulkan-drivers=${VULKAN_DRIVERS}, --without-vulkan-drivers"
 
 PACKAGECONFIG[gles] = "--enable-gles1 --enable-gles2, --disable-gles1 --disable-gles2"
 
-- 
2.1.4