diff --git a/SysBuild/development/cc65 b/SysBuild/development/cc65
index 64be54a..7eadb58 100644
--- a/SysBuild/development/cc65
+++ b/SysBuild/development/cc65
@@ -73,7 +73,10 @@
 SRCPATH=Development/Compiler
 
 premk() {
-	echo "Nothing to do for premk()"
+	mkdir -p $TMPROOT/usr/share/doc/cc65
+	mkdir -p $TMPROOT/usr/bin
+	mkdir -p $TMPROOT/usr/lib/cc65/asminc
+	mkdir -p $TMPROOT/usr/lib/cc65/include/em
 }
 
 mk() {
@@ -81,10 +84,12 @@ mk() {
 	cp $LFSSOURCE/$SRCPATH/cc65*.zip .
 	
 	for i in *.zip; do
-		unzip -o *.zip
+		unzip -o $i
 	done
 
-	make -j $NUMCPU -f make/gcc.mak
+	sed -i -e "s/\(^prefix.*=\).*$/\1 \/usr/" make/gcc.mak
+	sed -i -e "s/\(^MKDIR.*=\).*$/\1 mkdir -p -m 755/" make/gcc.mak
+	make -f make/gcc.mak
 	cd libsrc
 	make 
 	cd ..
@@ -98,6 +103,5 @@ mk() {
 
 postmk() {
 	GetSVN Viitor_cc65 $TMPROOT
-	mkdir -p $TMPROOT/usr/share/doc/cc65
 	cp -av samples $TMPROOT/usr/share/doc/cc65
 }