Index: /trunk/ccl/lisp-kernel/lisp-debug.c
===================================================================
--- /trunk/ccl/lisp-kernel/lisp-debug.c	(revision 6270)
+++ /trunk/ccl/lisp-kernel/lisp-debug.c	(revision 6271)
@@ -401,4 +401,5 @@
 }
 
+#ifdef PPC
 debug_command_return
 debug_advance_pc(ExceptionInformation *xp, siginfo_t *info, int arg)
@@ -407,4 +408,5 @@
   return debug_continue;
 }
+#endif
 
 debug_command_return
@@ -662,4 +664,5 @@
    "GPR to set (0-31) ?",
    'G'},
+#ifdef PPC
   {debug_advance_pc,
    "Advance the program counter by one instruction (use with caution!)",
@@ -667,4 +670,5 @@
    NULL,
    'A'},
+#endif
   {debug_identify_exception,
    "Describe the current exception in greater detail",