--- /dev/null
+++ dyld/dyld-1330/common/TargetPolicy.cpp
@@ -0,0 +1,56 @@
+/*
+* Copyright (c) 2019 Apple Inc. All rights reserved.
+*
+* @APPLE_LICENSE_HEADER_START@
+*
+* "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
+* Reserved.  This file contains Original Code and/or Modifications of
+* Original Code as defined in and that are subject to the Apple Public
+* Source License Version 1.0 (the 'License').  You may not use this file
+* except in compliance with the License.  Please obtain a copy of the
+* License at http://www.apple.com/publicsource and read it before using
+* this file.
+*
+* The Original Code and all software distributed under the License are
+* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+* License for the specific language governing rights and limitations
+* under the License."
+*
+* @APPLE_LICENSE_HEADER_END@
+*/
+
+#include "TargetPolicy.h"
+#include "Defines.h"
+
+#if BUILDING_DYLD
+    #if TARGET_OS_OSX
+    const bool gHeaderAddImplicitPlatform = true;
+    #else
+    const bool gHeaderAddImplicitPlatform = false;
+    #endif // TARGET_OS_OSX
+#else
+const bool gHeaderAddImplicitPlatform = false;
+#endif // BUILDING_DYLD
+
+#if BUILDING_LD || BUILDING_LD_UNIT_TESTS
+const bool gHeaderAllowEmptyPlatform = true;
+#else
+const bool gHeaderAllowEmptyPlatform = false;
+#endif // BUILDING_LD
+
+#if BUILDING_LD || BUILDING_LD_UNIT_TESTS
+// don't need deep inspection of dylibs we are linking with
+const bool gImageValidateInitializers = false;
+#else
+const bool gImageValidateInitializers = true;
+#endif
+
+#if BUILDING_DYLD
+// only dyld knows for sure that content was rebased when walking initializers
+const bool gImageAssumeContentRebased = true;
+#else
+const bool gImageAssumeContentRebased = false;
+#endif