diff -up systemtap-1.2/includes/sys/sdt.h.BAD systemtap-1.2/includes/sys/sdt.h
--- systemtap-1.2/includes/sys/sdt.h.BAD	2010-03-24 11:30:50.694520827 -0400
+++ systemtap-1.2/includes/sys/sdt.h	2010-03-24 11:44:29.062420646 -0400
@@ -72,7 +72,7 @@
 #define STAP_UNINLINE
 #endif
 
-#if defined __x86_64__ || defined __i386__  || defined __powerpc__ || defined __arm__
+#if defined __x86_64__ || defined __i386__  || defined __powerpc__ || defined __arm__ || defined __sparc__
 #define STAP_NOP "\tnop "
 #else
 #define STAP_NOP "\tnop 0 "