[FFmpeg-cvslog] build: add .metal to vpath to fix build error

[Zhao Zhili]

ffmpeg | branch: master | Zhao Zhili <quinkblack at foxmail.com> | Mon Dec 20 17:09:08 2021 +0800| [3c56b9c597565affdb97316fec11afb4cb5f1f00] | committer: Aman Karmani

build: add .metal to vpath to fix build error

Signed-off-by: Aman Karmani <aman at tmm1.net>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=3c56b9c597565affdb97316fec11afb4cb5f1f00
---

 Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Makefile b/Makefile
index 5b20658b52..5479554683 100644
--- a/Makefile
+++ b/Makefile
@@ -13,6 +13,7 @@ vpath %.v    $(SRC_PATH)
 vpath %.texi $(SRC_PATH)
 vpath %.cu   $(SRC_PATH)
 vpath %.ptx  $(SRC_PATH)
+vpath %.metal $(SRC_PATH)
 vpath %/fate_config.sh.template $(SRC_PATH)
 
 TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64 audiomatch