Fix OG_COUNTED_BY issue on Linux and macOS

Author: Kyle-Ye

Package.resolved

@@ -43,15 +43,19 @@
 #define OG_CONSTEXPR
 #endif
 
+#if __has_include(<ptrcheck.h>) // Fix conflict define issue of the SDK
+#include <ptrcheck.h>
+#define OG_COUNTED_BY(N) __counted_by(N)
+#else
 #if !defined(__counted_by)
 #if __has_attribute(__counted_by__)
 #define __counted_by(N) __attribute__((__counted_by__(N)))
 #else
 #define __counted_by(N)
 #endif
 #endif
-
 #define OG_COUNTED_BY(N) __counted_by(N)
+#endif
 
 #include "OGSwiftSupport.h"
 #include "OGTargetConditionals.h"

Sources/OpenGraph_SPI/include/OGBase.h

@@ -103,10 +103,18 @@ OG_EXPORT
 OG_REFINED_FOR_SWIFT
 void OGGraphSetNeedsUpdate(OGGraphRef graph) OG_SWIFT_NAME(OGGraphRef.setNeedsUpdate(self:));
 
-// TODO: Add OG_COUNTED_BY later https://github.com/OpenSwiftUIProject/OpenGraph/issues/130
+#if OG_TARGET_OS_DARWIN
+OG_EXPORT
+OG_REFINED_FOR_SWIFT
+bool OGGraphAnyInputsChanged(const OGAttribute *inputs OG_COUNTED_BY(count), size_t count);
+#else
+// __counted_by__ is supported with Swift 6.1+ toolchain's clang on Linux.
+// But it required the count to be declared first which is not required on Apple clang.
+// See https://github.com/OpenSwiftUIProject/OpenGraph/issues/130
 OG_EXPORT
 OG_REFINED_FOR_SWIFT
 bool OGGraphAnyInputsChanged(const OGAttribute *inputs, size_t count);
+#endif
 
 OG_EXTERN_C_END