fake:

package/base/dietlibc/dietlibc.conf

@@ -85,6 +85,7 @@ fi
 cpu="`echo "$arch_machine" | sed -e s/i.86/i386/ -e s/powerpc/ppc/`"
 
 var_append makeinstopt " " "DESTDIR=$root"
+var_insert patchfiles ' ' "$archdir/sparc64-softfpu-dietlibc0.25-1.0.diff.bz2"
 toolsbin=$base/build/$ROCKCFG_ID/ROCK/$toolsdir/diet-bin
 toolsinc=$base/build/$ROCKCFG_ID/ROCK/$toolsdir/diet-include
 

package/base/dietlibc/dietlibc.desc

@@ -43,5 +43,5 @@
 [P] X 01-3-----9 102.000
 
 [D] 2556882219 dietlibc-0.25.tar.bz2 http://www.kernel.org/pub/linux/libs/dietlibc/
-
+[D] 1283832747 sparc64-softfpu-dietlibc0.25-1.0.diff.bz2 http://www.rocklinux.net/people/fake/dietlibc/