diff --git a/include/depends.mk b/include/depends.mk
index 07345a399..1e01d35f8 100644
--- a/include/depends.mk
+++ b/include/depends.mk
@@ -11,18 +11,19 @@
 #	3: tempfile for file listings
 #	4: find options
 
-FINDPARAMS := -type f -not -name ".*" -and -not -path "*.svn*" 
+DEP_FINDPARAMS := -type f -not -name ".*" -and -not -path "*.svn*" 
 define rdep
-  $(foreach file,$(shell find $(1) $(FINDPARAMS) -and -not -path "*:*" $(4)),
+  $(foreach file,$(shell find $(1) $(DEP_FINDPARAMS) -and -not -path "*:*" $(4)),
     $(2): $(file)
     $(file): ;
   )
 
-  ifneq ($(shell find $(1) $(FINDPARAMS) $(4) 2>/dev/null | md5s),$(shell cat $(3) 2>/dev/null))
-    $(2): $(3)
-  endif
+  ifneq ($(3),)
+    ifneq ($$(shell find $(1) $(DEP_FINDPARAMS) $(4) 2>/dev/null | md5s),$(if $(3),$(shell cat $(3) 2>/dev/null)))
+      $(2): $(3)
+    endif
   
-  $(3): FORCE
-	@-find $(1) $(FINDPARAMS) $(4) 2>/dev/null | md5s > $$@
-
+    $(3): FORCE
+	  @-find $(1) $(DEP_FINDPARAMS) $(4) 2>/dev/null | md5s > $$@
+  endif
 endef
diff --git a/include/host-build.mk b/include/host-build.mk
index 591a36bd3..83d80bedd 100644
--- a/include/host-build.mk
+++ b/include/host-build.mk
@@ -9,9 +9,9 @@ include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/unpack.mk
 include $(INCLUDE_DIR)/depends.mk
 
-STAMP_PREPARED=$(PKG_BUILD_DIR)/.prepared
-STAMP_CONFIGURED=$(PKG_BUILD_DIR)/.configured
-STAMP_BUILT=$(PKG_BUILD_DIR)/.built
+STAMP_PREPARED:=$(PKG_BUILD_DIR)/.prepared_$(shell find ${CURDIR} $(PKG_FILE_DEPEND) $(DEP_FINDPARAMS) | md5s)
+STAMP_CONFIGURED:=$(PKG_BUILD_DIR)/.configured
+STAMP_BUILT:=$(PKG_BUILD_DIR)/.built
 
 ifneq ($(strip $(PKG_UNPACK)),)
   define Build/Prepare/Default
@@ -80,7 +80,7 @@ endif
 ifneq ($(CONFIG_AUTOREBUILD),)
   define HostBuild/Autoclean
     $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
-    $(call rdep,${CURDIR} $(PKG_FILE_DEPEND),$(STAMP_PREPARED),$(TMP_DIR)/.packagedir_$(shell echo "${CURDIR}" | md5s))
+    $(call rdep,${CURDIR} $(PKG_FILE_DEPEND),$(STAMP_PREPARED))
     $(call rdep,$(PKG_BUILD_DIR),$(STAMP_BUILT),$(PKG_BUILD_DIR)/.dep_files, -and -not -path "/.*" -and -not -path "*/ipkg*")
   endef
 endif
diff --git a/include/package-ipkg.mk b/include/package-ipkg.mk
index 20d132613..597f5f87c 100644
--- a/include/package-ipkg.mk
+++ b/include/package-ipkg.mk
@@ -78,7 +78,7 @@ ifeq ($(DUMP),)
 
     clean: $(1)-clean
 
-    $(PKG_BUILD_DIR)/.version-$(1)_$(VERSION)_$(PKGARCH): $(PKG_BUILD_DIR)/.prepared
+    $(PKG_BUILD_DIR)/.version-$(1)_$(VERSION)_$(PKGARCH): $(STAMP_PREPARED)
 	-@rm -f $(PKG_BUILD_DIR)/.version-$(1)_* 2>/dev/null
 	@touch $$@
 
diff --git a/include/package.mk b/include/package.mk
index fe6a7617c..f228de2bc 100644
--- a/include/package.mk
+++ b/include/package.mk
@@ -18,7 +18,7 @@ include $(INCLUDE_DIR)/package-defaults.mk
 include $(INCLUDE_DIR)/package-dumpinfo.mk
 include $(INCLUDE_DIR)/package-ipkg.mk
 
-STAMP_PREPARED:=$(PKG_BUILD_DIR)/.prepared
+STAMP_PREPARED:=$(PKG_BUILD_DIR)/.prepared_$(shell find ${CURDIR} $(PKG_FILE_DEPEND) $(DEP_FINDPARAMS) | md5s)
 STAMP_CONFIGURED:=$(PKG_BUILD_DIR)/.configured
 STAMP_BUILT:=$(PKG_BUILD_DIR)/.built
 export CONFIG_SITE:=$(INCLUDE_DIR)/site/$(REAL_GNU_TARGET_NAME)
@@ -26,7 +26,7 @@ export CONFIG_SITE:=$(INCLUDE_DIR)/site/$(REAL_GNU_TARGET_NAME)
 ifneq ($(CONFIG_AUTOREBUILD),)
   define Build/Autoclean
     $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
-    $(call rdep,${CURDIR} $(PKG_FILE_DEPEND),$(STAMP_PREPARED),$(TMP_DIR)/.packagedir_$(shell echo "${CURDIR}" | md5s))
+    $(call rdep,${CURDIR} $(PKG_FILE_DEPEND),$(STAMP_PREPARED))
     $(call rdep,$(PKG_BUILD_DIR),$(STAMP_BUILT),$(PKG_BUILD_DIR)/.dep_files, -and -not -path "/.*" -and -not -path "*/ipkg*")
   endef
 endif