From b8b3589f59b404d773a5705412e4c32885477314 Mon Sep 17 00:00:00 2001
From: Amos Elberg <amos.elberg@gmail.com>
Date: Fri, 15 Jan 2021 10:36:58 -0800
Subject: [PATCH] use patch to fix compilation on Apple Silicon

---
 src/tbb/build/macos.inc | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/tbb/build/macos.inc b/src/tbb/build/macos.inc
index 8df5bbda..b22828d6 100644
--- a/src/tbb/build/macos.inc
+++ b/src/tbb/build/macos.inc
@@ -40,10 +40,14 @@ ifndef arch
      export arch:=ppc32
    endif
  else
-   ifeq ($(shell /usr/sbin/sysctl -n hw.optional.x86_64 2>/dev/null),1)
-     export arch:=intel64
+   ifeq ($(shell /usr/sbin/sysctl -n hw.machine),arm64)
+     export arch:=arm64
    else
-     export arch:=ia32
+     ifeq ($(shell /usr/sbin/sysctl -n hw.optional.x86_64 2>/dev/null),1)
+       export arch:=intel64
+     else
+       export arch:=ia32
+     endif
    endif
  endif
 endif