--- a/toolchain/Makefile
+++ b/toolchain/Makefile
@@ -6,8 +6,7 @@
 #
 # Main makefile for the toolchain
 #
-file:=${lastword ${MAKEFILE_LIST}}
-curdir:=$(patsubst %/Makefile,%,${file})
+curdir:=toolchain
 
 # subdirectories to descend into
 $(curdir)/builddirs := kernel-headers $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_NATIVE_TOOLCHAIN),,binutils gcc uClibc)
@@ -22,12 +21,12 @@
 $(curdir)/gcc/install:=$(curdir)/uClibc/install
 
 # prerequisites for the individual targets
-$(curdir)/ := .config $(tools/stamp)
+$(curdir)/ := .config $(tools/stamp-install) prereq
 $(curdir)//prepare = $(STAGING_DIR)/include-host/.done
 $(curdir)//compile = $(1)/prepare
 $(curdir)//install = $(1)/compile
 
-$(eval $(call stampfile,$(curdir),toolchain))
+$(eval $(call stampfile,$(curdir),toolchain,install))
 $(eval $(call subdir,$(curdir)))