--- src/gdb/macosx/macosx-nat-dyld.c
+++ src/gdb/macosx/macosx-nat-dyld.c
@@ -2083,7 +2083,9 @@
     case MH_DYLIB:
     case MH_DYLINKER:
     case MH_BUNDLE:
+#ifdef MH_KEXT_BUNDLE
     case MH_KEXT_BUNDLE:
+#endif
       break;
     case MH_FVMLIB:
     case MH_PRELOAD:
@@ -2412,7 +2414,9 @@
       break;
     case MH_DYLINKER:
     case MH_BUNDLE:
+#ifdef MH_KEXT_BUNDLE
     case MH_KEXT_BUNDLE:
+#endif
       entry->reason = dyld_reason_dyld;
       break;
     default:
--- src/gdb/macosx/macosx-nat-dyld-process.c
+++ src/gdb/macosx/macosx-nat-dyld-process.c
@@ -407,7 +407,9 @@
     case MH_DYLIB:
       break;
     case MH_BUNDLE:
+#ifdef MH_KEXT_BUNDLE
     case MH_KEXT_BUNDLE:
+#endif
       break;
     default:
       return;
       return;
--- src/gdb/macosx/macosx-nat-inferior.c
+++ src/gdb/macosx/macosx-nat-inferior.c
@@ -2692,6 +2692,7 @@
   if (tp->private == NULL || tp->private->app_thread_port == 0)
     return NULL;
 
+#ifdef THREAD_IDENTIFIER_INFO_COUNT
   thread_identifier_info_data_t tident;
   unsigned int info_count;
   kern_return_t kret;
@@ -2719,6 +2720,7 @@
             }
         }
     }
+#endif
   return buf;
 }
 
--- src/gdb/macosx/macosx-nat-infthread.c
+++ src/gdb/macosx/macosx-nat-infthread.c
@@ -809,6 +809,7 @@
     print_stack_frame (get_selected_frame (NULL), 0, LOCATION);
     switch_to_thread (current_ptid);
 
+#ifdef THREAD_IDENTIFIER_INFO_COUNT
   thread_identifier_info_data_t tident;
   info_count = THREAD_IDENTIFIER_INFO_COUNT;
   kret = thread_info (tid, THREAD_IDENTIFIER_INFO, (thread_info_t) &tident, 
@@ -878,6 +879,7 @@
       printf_filtered ("\tcurrent priority: %d\n", pth.pth_priority);
       printf_filtered ("\tmax priority: %d\n", pth.pth_maxpriority);
     }
+#endif
 
   printf_filtered ("\tsuspend count: %d", info.suspend_count);
 
@@ -1175,6 +1177,7 @@
   ui_out_field_fmt (uiout, "mach-port-number", "0x%s", 
                     paddr_nz (app_thread_name));
 
+#ifdef THREAD_IDENTIFIER_INFO_COUNT
   thread_identifier_info_data_t tident;
   info_count = THREAD_IDENTIFIER_INFO_COUNT;
   kret = thread_info (tid, THREAD_IDENTIFIER_INFO, (thread_info_t) &tident, 
@@ -1207,6 +1210,7 @@
                               paddr_nz (struct_addr));
         }
     }
+#endif
 }