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.
3 years ago · 62ad427823
parent 3767900860
commit 62ad427823
1 changed files with 2 additions and 0 deletions
--- a/2
+++ b/2
@ -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