diff -ur linux-2.4.20-wt7-pre1/drivers/perfctr/compat.h l/drivers/perfctr/compat.h
--- linux-2.4.20-wt7-pre1/drivers/perfctr/compat.h	Sun Mar  2 03:38:06 2003
+++ l/drivers/perfctr/compat.h	Sun Mar  2 03:47:27 2003
@@ -97,7 +97,7 @@
 #define task_thread(tsk)	(&(tsk)->thread)
 
 #define get_cpus_allowed(tsk)	((tsk)->cpus_allowed)
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21) && !defined(HAVE_SET_CPUS_ALLOWED)
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21) && !defined(HAVE_SET_CPUS_ALLOWED) && 0
 #ifdef CONFIG_SMP
 extern void set_cpus_allowed(struct task_struct*, unsigned long);
 #else
diff -ur linux-2.4.20-wt7-pre1/drivers/perfctr/x86_setup.c l/drivers/perfctr/x86_setup.c
--- linux-2.4.20-wt7-pre1/drivers/perfctr/x86_setup.c	Sun Mar  2 03:49:46 2003
+++ l/drivers/perfctr/x86_setup.c	Sun Mar  2 03:47:48 2003
@@ -16,7 +16,7 @@
 #include "compat.h"
 
 /* XXX: belongs to a virtual_compat.c file */
-#if defined(CONFIG_SMP) && LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) && !defined(HAVE_SET_CPUS_ALLOWED)
+#if defined(CONFIG_SMP) && LINUX_VERSION_CODE < KERNEL_VERSION(2,4,21) && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) && !defined(HAVE_SET_CPUS_ALLOWED) && 0
 /**
  * set_cpus_allowed() - change a given task's processor affinity
  * @p: task to bind