From 764b552ac5d1530bb40fbe5a38fb8dd8b9739f6b Mon Sep 17 00:00:00 2001
From: Bogdan Popa <bogdan@defn.io>
Date: Mon, 18 Jan 2021 13:51:57 +0200
Subject: [PATCH] bc: fix build for iOS

`MAP_JIT' is available but does not work and `pthread_jit_write_protect_np'
is not available at all on iOS.
---
 racket/src/bc/sconfig.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/racket/src/bc/sconfig.h b/racket/src/bc/sconfig.h
index 4b9169f09d..f947a53574 100644
--- a/racket/src/bc/sconfig.h
+++ b/racket/src/bc/sconfig.h
@@ -654,7 +654,9 @@
 #  define SCHEME_ARCH "arm"
 # elif defined(__arm64__)
 #  define SCHEME_ARCH "aarch64"
-#  define MZ_USE_MAP_JIT
+#  if !defined(TARGET_OS_IPHONE)
+#   define MZ_USE_MAP_JIT
+#  endif
 #  define USE_DLOPEN_GLOBAL_BY_DEFAULT
 # elif defined(__x86_64__)
 #   define SCHEME_ARCH "x86_64"