diff --git a/external/gpl3/gdb/dist/gdb/inf-ptrace.c b/external/gpl3/gdb/dist/gdb/inf-ptrace.c
index 452edfa18d29..999edb3697ac 100644
--- a/external/gpl3/gdb/dist/gdb/inf-ptrace.c
+++ b/external/gpl3/gdb/dist/gdb/inf-ptrace.c
@@ -345,6 +345,7 @@ inf_ptrace_resume (struct target_ops *ops,
   else
     request = PT_CONTINUE;
 
+#if defined(__NetBSD__) && PT_STEP == 9
   if (step)
     {
       /* If this system does not support PT_STEP, a higher level
@@ -363,6 +364,7 @@ inf_ptrace_resume (struct target_ops *ops,
       sig = 0;
 #endif
     } else
+#endif
       sig = gdb_signal_to_host (signal);
 
   /* An address of (PTRACE_TYPE_ARG3)1 tells ptrace to continue from