Fixed build errors

* Resolves problem in macOS Monterey + Clang 13 where there is no memalloc and
  memalign must be used

* Resolves builld error when passing an empty list of files to the AR
  tool

* Resolves MLCE-685

Change-Id: I862ff1dc7f74b2ba32479f6e8abaa32a88d47995
Signed-off-by: Pablo Marquez Tello <pablo.tello@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6706
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/cpu/CpuContext.cpp b/src/cpu/CpuContext.cpp
index 1a971a6..917bf68 100644
--- a/src/cpu/CpuContext.cpp
+++ b/src/cpu/CpuContext.cpp
@@ -28,7 +28,10 @@
 #include "src/cpu/CpuTensor.h"
 
 #include <cstdlib>
+#if !defined(__APPLE__)
 #include <malloc.h>
+#endif // !defined(__APPLE__)
+
 
 namespace arm_compute
 {
@@ -50,11 +53,11 @@
 {
     ARM_COMPUTE_UNUSED(user_data);
     void *ptr = nullptr;
-#if defined(BARE_METAL) || defined(__APPLE__)
+#if defined(BARE_METAL)
     size_t rem       = size % alignment;
     size_t real_size = (rem) ? (size + alignment - rem) : size;
     ptr              = memalign(alignment, real_size);
-#else  /* defined(BARE_METAL) || defined(__APPLE__) */
+#else  /* defined(BARE_METAL) */
     if(posix_memalign(&ptr, alignment, size) != 0)
     {
         // posix_memalign returns non-zero on failures, the return values will be
@@ -62,7 +65,7 @@
         // - ENOMEM: insufficient memory
         ARM_COMPUTE_LOG_ERROR_ACL("posix_memalign failed, the returned pointer will be invalid");
     }
-#endif /* defined(BARE_METAL) || defined(__APPLE__) */
+#endif /* defined(BARE_METAL) */
     return ptr;
 }
 void default_aligned_free(void *user_data, void *ptr)