refactor config

aws-common-runtime/config/aws/common/config.h

@@ -1,25 +1,27 @@
-#ifdef __APPLE__
-#    include <TargetConditionals.h>
-#endif
-
-#ifndef AWS_COMMON_CONFIG_H
-#    define AWS_COMMON_CONFIG_H
 /**
  * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
  * SPDX-License-Identifier: Apache-2.0.
  */
+
+#ifndef AWS_COMMON_CONFIG_H
+#define AWS_COMMON_CONFIG_H
 /*
  * This header exposes compiler feature test results determined during cmake
  * configure time to inline function implementations. The macros defined here
  * should be considered to be an implementation detail, and can change at any
  * time.
  */
+#ifdef __APPLE__
+/* This is a trick to skip OpenSSL header on Apple platforms since Swift Package Manager is not smart enough to exclude
+ * some headers. 
+ */
+#    define AWS_C_CAL_OPENSSLCRYPTO_COMMON_H
+#endif
 #define AWS_HAVE_GCC_OVERFLOW_MATH_EXTENSIONS
 #define AWS_HAVE_GCC_INLINE_ASM
-#if TARGET_OS_IPHONE || TARGET_OS_SIMULATOR || TARGET_OS_MAC
-#        define AWS_C_CAL_OPENSSLCRYPTO_COMMON_H
-#endif
+
 #define AWS_UNSTABLE_TESTING_API 1
 #define AWS_AFFINITY_METHOD 0
 #define AWS_HAVE_EXECINFO 1
+
 #endif