Mesa (master): vulkan/util: Fix implicit declaration of ffs for Android build

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Module: Mesa
Branch: master
Commit: 1b3a0f88295037fb1261d319350ec87f097474dd
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=1b3a0f88295037fb1261d319350ec87f097474dd

Author: Mauro Rossi <issor.oruam at gmail.com>
Date:   Sat Apr  3 22:05:22 2021 +0200

vulkan/util: Fix implicit declaration of ffs for Android build

Similar to 641320ce02ff and 68bb26af63ac to avoid Android build errors

Fixes the following building error:

In file included from external/mesa/src/vulkan/util/vk_util.c:28:
external/mesa/src/vulkan/util/vk_util.h:248:30: error: implicit declaration of function 'ffs' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
   return (gl_shader_stage) (ffs((uint32_t) vk_stage) - 1);
                             ^
1 error generated.

Fixes: 06ebbde63048 ("vulkan: Deduplicate mesa stage conversion")
Acked-by: Jason Ekstrand <jason at jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10023>

---

 src/vulkan/util/vk_util.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/vulkan/util/vk_util.h b/src/vulkan/util/vk_util.h
index 31f3edb0d9f..b4c82052e15 100644
--- a/src/vulkan/util/vk_util.h
+++ b/src/vulkan/util/vk_util.h
@@ -23,6 +23,7 @@
 #ifndef VK_UTIL_H
 #define VK_UTIL_H
 
+#include "util/bitscan.h"
 #include "util/macros.h"
 #include "compiler/shader_enums.h"
 #include <string.h>