if (user_mode(&fp->ptregs))
current->thread.esp0 = (unsigned long) fp;
-#if DEBUG
+#if defined(DEBUG)
printk (KERN_DEBUG "*** Bus Error *** Format is %x\n", fp->ptregs.format);
#endif
die_if_kernel("bad frame format",&fp->ptregs,0);
-#if DEBUG
+#if defined(DEBUG)
printk(KERN_DEBUG "Unknown SIGSEGV - 4\n");
#endif
force_sig(SIGSEGV, current);