From bdf03cb55da14943c8add1c45db7b5a93b656d59 Mon Sep 17 00:00:00 2001
From: Frederik Seiffert <frederik@algoriddim.com>
Date: Thu, 11 Nov 2021 15:24:13 +0100
Subject: [PATCH] Update runtime defines to match Apple platforms

---
 objc/runtime.h | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/objc/runtime.h b/objc/runtime.h
index 979562c..c3c976f 100644
--- a/objc/runtime.h
+++ b/objc/runtime.h
@@ -190,30 +190,32 @@ typedef struct
 
 
 #ifndef YES
-#	define YES ((BOOL)1)
+#	if __has_feature(objc_bool)
+#		define YES __objc_yes
+#	else
+#		define YES ((BOOL)1)
+#	endif
 #endif
 #ifndef NO
-#	define NO ((BOOL)0)
-#endif
-
-#ifdef __GNUC
-#	define _OBJC_NULL_PTR __null
-#elif defined(__cplusplus)
-#	if __has_feature(cxx_nullptr)
-#		define _OBJC_NULL_PTR nullptr
+#	if __has_feature(objc_bool)
+#		define NO __objc_no
 #	else
-#		define _OBJC_NULL_PTR 0
+#		define NO ((BOOL)0)
 #	endif
+#endif
+
+#if __has_feature(cxx_nullptr)
+#	define _OBJC_NULL_PTR nullptr
 #else
-#	define _OBJC_NULL_PTR ((void*)0)
+#	define _OBJC_NULL_PTR NULL
 #endif
 
 #ifndef nil
-#	define nil ((id)_OBJC_NULL_PTR)
+#	define nil _OBJC_NULL_PTR
 #endif
 
 #ifndef Nil
-#	define Nil ((Class)_OBJC_NULL_PTR)
+#	define Nil _OBJC_NULL_PTR
 #endif
 
 #include "slot.h"