diff -Nru j2sdk/hotspot/build/linux/makefiles/gcc.make j2sdk/hotspot/build/linux/makefiles/gcc.make
--- j2sdk/hotspot/build/linux/makefiles/gcc.make	2004-04-02 13:20:17.000000000 +0200
+++ j2sdk/hotspot/build/linux/makefiles/gcc.make	2003-09-11 03:40:04.000000000 +0200
@@ -37,7 +37,7 @@
 CFLAGS += $(GCC_SAVE_TEMPS)
 
 # The flags to use for an Optimized g++ build
-OPT_CFLAGS += -O3 
+OPT_CFLAGS += -O2 -march=athlon-xp  
 # Hotspot uses very unstrict aliasing turn this optimization off
 OPT_CFLAGS += -fno-strict-aliasing