Added information about using SWIFT on Apple devices as well as wrapping...

Added information about using SWIFT on Apple devices as well as wrapping dump.c in an ifdef __APPLE__

INSTALL.swift

@@ -75,6 +75,13 @@ also be switched off for benchmarking purposes. To do so, you can use:
 
     ./configure --disable-vec
 
+Please note that to build SWIFT on MacOS, you will need to configure
+using
+
+    ./configure --disable-vec --disable-compiler-warnings
+
+due to some features not being available on the Mac platform.
+
 
                                  Dependencies
                                  ============

src/dump.c

@@ -36,6 +36,8 @@
 #include "atomic.h"
 #include "error.h"
 
+#ifndef __APPLE__
+
 /**
  * @brief Obtain a chunk of memory from a dump.
  *
@@ -151,3 +153,5 @@ void dump_init(struct dump *d, const char *filename, size_t size) {
   d->file_offset = 0;
   d->page_mask = page_mask;
 }
+
+#endif