--- asterisk-1.2.9.1/Makefile.org	2006-06-10 23:39:03.879321846 +0200
+++ asterisk-1.2.9.1/Makefile	2006-06-10 23:39:13.114027726 +0200
@@ -179,8 +179,8 @@
 
   ifeq ($(PROC),x86_64)
     # You must have GCC 3.4 to use k8, otherwise use athlon
-    PROC=k8
-    #PROC=athlon
+    #PROC=k8
+    PROC=athlon
   endif
 
   ifeq ($(PROC),sparc64)