CMSIS-DSP: Add support to build with XCode

CMSIS/DSP/Include/arm_math_types.h

@@ -67,7 +67,11 @@ extern "C"
 #define __STATIC_FORCEINLINE static __forceinline
 #define __STATIC_INLINE static __inline
 #define __ALIGNED(x) __declspec(align(x))
-
+#elif defined ( __APPLE_CC__ )
+#include <stdint.h>
+#define  __ALIGNED(x) __attribute__((aligned(x)))
+#define __STATIC_FORCEINLINE static inline __attribute__((always_inline)) 
+#define __STATIC_INLINE static inline
 #elif defined (__GNUC_PYTHON__)
 #include <stdint.h>
 #define  __ALIGNED(x) __attribute__((aligned(x)))

CMSIS/DSP/Include/dsp/none.h

@@ -59,7 +59,7 @@ MSVC is not going to be used to cross-compile to ARM. So, having a MSVC
 compiler file in Core or Core_A would not make sense.
 
 */
-#if defined ( _MSC_VER ) || defined(__GNUC_PYTHON__)
+#if defined ( _MSC_VER ) || defined(__GNUC_PYTHON__) || defined(__APPLE_CC__)
     __STATIC_FORCEINLINE uint8_t __CLZ(uint32_t data)
     {
       if (data == 0U) { return 32U; }