macOS fixes

sys/unix/unixmain.c

@@ -842,19 +842,16 @@ sys_random_seed(void)
 }
 
 #if defined(MACOS) && defined(NHUUID)
-extern char *get_macos_uuid(char **); /* sys/unix/macuuid.m */
+extern void get_macos_uuid(char *); /* sys/unix/macuuid.m */
 extern void free_macos_uuid(void);  /* sys/unix/macuuid.m */
 #endif
 
 void
 get_nhuuid(void)
 {
-#if !defined(MACOS)
 #if defined(NHUUID)
     char struuid[37] = { 0 };
-#endif
-#endif
-    char *struuidptr = NULL;
+    char *struuidptr = &struuid[0];
 #if defined(LINUX) && defined(NHUUID)
     uuid_t binuuid;
 #endif
@@ -862,20 +859,17 @@ get_nhuuid(void)
     if (svn.nhuuid[0])
         return;
 
-#if defined(MACOS) && defined(NHUUID)
-    get_macos_uuid(&struuidptr);
-#elif defined(LINUX) && defined(NHUUID)
+#if defined(MACOS)
+    get_macos_uuid(&struuid[0]);
+#elif defined(LINUX)
     uuid_generate_random(binuuid);
     uuid_unparse(binuuid, struuid);
-    struuidptr = &struuid[0];
 #endif /* MACOS || LINUX */
 
-    if (struuidptr)
+    if (*struuidptr)
         Snprintf(svn.nhuuid, sizeof svn.nhuuid, "%s", struuidptr);
 
-#if defined(MACOS) && defined(NHUUID)
-    free_macos_uuid();
-#endif
+#endif  /* NHUUID */
 }
 
 void