From 62ad427823a22e2afa5069f9611ce07d6a87da78 Mon Sep 17 00:00:00 2001
From: rcombs <rcombs@rcombs.me>
Date: Tue, 21 Dec 2021 02:35:40 -0600
Subject: [PATCH] configure: test the metal compiler before use

Apparently Metal.framework is included with the command line tools
(and thus may be present without Xcode), but the Metal compiler is only
included as part of Xcode.
---
 configure | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure b/configure
index 93c1fb18719bb..410f7cb241af5 100755
--- a/configure
+++ b/configure
@@ -6365,6 +6365,8 @@ enabled videotoolbox && {
     check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferTransferFunction_SMPTE_ST_428_1 "-framework CoreVideo"
 }
 
+enabled metal && test_cmd $metalcc -v || disable metal
+
 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
 
 check_type "windows.h dxva.h" "DXVA_PicParams_AV1" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0