diff -Naur -X exclude-files ac_cur/include/asm-um/param.h ac/include/asm-um/param.h
--- ac_cur/include/asm-um/param.h	Sat Sep 15 15:56:38 2001
+++ ac/include/asm-um/param.h	Sat Sep 15 16:23:15 2001
@@ -5,6 +5,8 @@
 #define HZ 20
 #endif
 
+#define hz_to_std(a) (((a)*HZ)/100)
+
 #define EXEC_PAGESIZE   4096
 
 #ifndef NGROUPS