include: clean package staging dir files before configure

This is required to allow packages to ship libraries with a different API.
Previously the linker would favor the old shared libraries in STAGING_DIR
instead of the just compiled ones in PKG_BUILD_DIR.

Avoid that problem by clearing the package staging files right after
prepare.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 45759

include/package.mk

@@ -104,6 +104,17 @@ STAMP_BUILT:=$(PKG_BUILD_DIR)/.built
 STAMP_INSTALLED:=$(STAGING_DIR)/stamp/.$(PKG_NAME)$(if $(BUILD_VARIANT),.$(BUILD_VARIANT),)_installed
 
 STAGING_FILES_LIST:=$(PKG_NAME)$(if $(BUILD_VARIANT),.$(BUILD_VARIANT),).list
+
+define CleanStaging
+	rm -f $(STAMP_INSTALLED)
+	@-(\
+		cd "$(STAGING_DIR)"; \
+		if [ -f packages/$(STAGING_FILES_LIST) ]; then \
+			cat packages/$(STAGING_FILES_LIST) | xargs -r rm -f 2>/dev/null; \
+		fi; \
+	)
+endef
+
 ifneq ($(if $(CONFIG_SRC_TREE_OVERRIDE),$(wildcard ./git-src)),)
   USE_GIT_TREE:=1
   QUILT:=1
@@ -202,6 +213,7 @@ define Build/DefaultTargets
 
   $(call Build/Exports,$(STAMP_CONFIGURED))
   $(STAMP_CONFIGURED): $(STAMP_PREPARED)
+	$(CleanStaging)
 	$(foreach hook,$(Hooks/Configure/Pre),$(call $(hook))$(sep))
 	$(Build/Configure)
 	$(foreach hook,$(Hooks/Configure/Post),$(call $(hook))$(sep))
@@ -219,7 +231,6 @@ define Build/DefaultTargets
 
   $(STAMP_INSTALLED) : export PATH=$$(TARGET_PATH_PKG)
   $(STAMP_INSTALLED): $(STAMP_BUILT)
-	$(SUBMAKE) -j1 clean-staging
 	rm -rf $(TMP_DIR)/stage-$(PKG_NAME)
 	mkdir -p $(TMP_DIR)/stage-$(PKG_NAME)/host $(STAGING_DIR)/packages $(STAGING_DIR_HOST)/packages
 	$(foreach hook,$(Hooks/InstallDev/Pre),\
@@ -330,16 +341,9 @@ prepare:
 configure:
 compile: prepare-package-install
 install: compile
-clean-staging: FORCE
-	rm -f $(STAMP_INSTALLED)
-	@-(\
-		cd "$(STAGING_DIR)"; \
-		if [ -f packages/$(STAGING_FILES_LIST) ]; then \
-			cat packages/$(STAGING_FILES_LIST) | xargs -r rm -f 2>/dev/null; \
-		fi; \
-	)
 
-clean: clean-staging FORCE
+clean: FORCE
+	$(CleanStaging)
 	$(call Build/UninstallDev,$(STAGING_DIR),$(STAGING_DIR_HOST))
 	$(Build/Clean)
 	rm -f $(STAGING_DIR)/packages/$(STAGING_FILES_LIST) $(STAGING_DIR_HOST)/packages/$(STAGING_FILES_LIST)