Stefan Fiedler:

package/powerpc/yaboot/cross-compile.patch

@@ -0,0 +1,28 @@
+--- ./Makefile~	2006-03-16 19:26:56.000000000 +0100
++++ ./Makefile	2006-03-16 19:36:00.000000000 +0100
+@@ -26,7 +26,7 @@
+ # Set this to the prefix of your cross-compiler, if you have one.
+ # Else leave it empty.
+ #
+-CROSS = 
++CROSS = powerpc-unknown-linux-gnu-
+ 
+ # The flags for the yaboot binary.
+ #
+--- yaboot-1.3.13/Makefile~	2006-03-16 19:38:24.000000000 +0100
++++ yaboot-1.3.13/Makefile	2006-03-16 19:40:45.000000000 +0100
+@@ -172,10 +172,10 @@
+ release: docs bindist clean
+ 
+ strip: all
+-	strip second/yaboot
+-	strip --remove-section=.comment second/yaboot
+-	strip util/addnote
+-	strip --remove-section=.comment --remove-section=.note util/addnote
++	${CROSS}strip second/yaboot
++	${CROSS}strip --remove-section=.comment second/yaboot
++	${CROSS}strip util/addnote
++	${CROSS}strip --remove-section=.comment --remove-section=.note util/addnote
+ 
+ install: all strip
+ 	install -d -o root -g root -m 0755 ${ROOT}/etc/

package/powerpc/yaboot/yaboot.conf

@@ -32,4 +32,12 @@ yaboot_pi(){
 }
 
 hook_add postinstall 3 "yaboot_pi"
+hook_add premake 3 "yaboot_premake"
 
+yaboot_premake() {
+	if [ $ROCKCFG_CROSSBUILD = 1 ] ; then
+		# tell yaboot how to cross-compile
+		sed -i "s,^ROOT =,ROOT = $xroot," Makefile
+		sed -i "s,^CROSS =,CROSS = $archprefix," Makefile
+	fi
+}

package/powerpc/yaboot/yaboot.desc

@@ -40,6 +40,6 @@
 [L] GPL
 [S] Stable
 [V] 1.3.13
-[P] X -?---5---9 183.800
+[P] X -1---5---9 183.800
 
 [D] 1961696557 yaboot-1.3.13.tar.gz http://www.penguinppc.org/projects/yaboot/