From f5daa9f76bcf31bab61feefc668de523bc667c2f Mon Sep 17 00:00:00 2001
From: Tao Xu <taox@fb.com>
Date: Thu, 4 Nov 2021 16:44:44 -0700
Subject: [PATCH] [iOS] Enable ARC for CMake build (#67884)

Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/67884

Test Plan: Imported from OSS

Reviewed By: husthyc

Differential Revision: D32191532

Pulled By: xta0

fbshipit-source-id: a295004f8e7f1b0f5a4ab12ffd9b37c36b80226b
---
 scripts/build_ios.sh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/build_ios.sh b/scripts/build_ios.sh
index 7c5669ee852..4158b27365c 100755
--- a/scripts/build_ios.sh
+++ b/scripts/build_ios.sh
@@ -176,6 +176,9 @@ if [ "${VERBOSE:-}" == '1' ]; then
   CMAKE_ARGS+=("-DCMAKE_VERBOSE_MAKEFILE=1")
 fi
 
+# enable ARC
+CMAKE_ARGS+=("-DCMAKE_CXX_FLAGS=-fobjc-arc")
+
 # Now, actually build the iOS target.
 BUILD_ROOT=${BUILD_ROOT:-"$CAFFE2_ROOT/build_ios"}
 INSTALL_PREFIX=${BUILD_ROOT}/install