+define Kernel/Patch/Default
+ if [ -d $(GENERIC_PLATFORM_DIR)/files ]; then $(CP) $(GENERIC_PLATFORM_DIR)/files/* $(LINUX_DIR)/; fi
+ if [ -d ./files ]; then $(CP) ./files/* $(LINUX_DIR)/; fi
+ $(if $(strip $(QUILT)),$(call Quilt/Patch,$(GENERIC_PLATFORM_DIR)/patches,generic/), \
+ if [ -d $(GENERIC_PLATFORM_DIR)/patches ]; then $(PATCH) $(LINUX_DIR) $(GENERIC_PLATFORM_DIR)/patches; fi \
+ )
+ $(if $(strip $(QUILT)),$(call Quilt/Patch,./patches,platform/), \
+ if [ -d ./patches ]; then $(PATCH) $(LINUX_DIR) ./patches; fi \
+ )
+ $(if $(strip $(QUILT)),touch $(PKG_BUILD_DIR)/.quilt_used)
+endef
+
+$(STAMP_PATCHED): $(STAMP_PREPARED)
+ @cd $(PKG_BUILD_DIR); quilt pop -a -f >/dev/null 2>/dev/null || true
+ [ -f "$(PKG_BUILD_DIR)/patches/series" ] && cd $(PKG_BUILD_DIR); quilt push -a
+ touch $@
+
+define Quilt/RefreshDir
+ mkdir -p $(1)
+ -rm -f $(1)/* 2>/dev/null >/dev/null
+ @( \
+ for patch in $$($(if $(2),grep "^$(2)",cat) $(PKG_BUILD_DIR)/patches/series | awk '{print $$1}'); do \
+ $(CP) -v "$(PKG_BUILD_DIR)/patches/$$patch" $(1); \
+ done; \
+ )
+endef
+
+define Quilt/Refresh/Package
+ $(call Quilt/RefreshDir,./patches)
+endef
+
+define Quilt/Refresh/Kernel
+ @[ -z "$$(grep -v '^generic/' $(PKG_BUILD_DIR)/patches/series | grep -v '^platform/')" ] || { \
+ echo "All kernel patches must start with either generic/ or platform/"; \
+ false; \
+ }
+ $(call Quilt/RefreshDir,$(GENERIC_PLATFORM_DIR)/patches,generic/)
+ $(call Quilt/RefreshDir,./patches,platform/)
+endef
+
+quilt-check: $(STAMP_PREPARED) FORCE
+ @[ -f "$(PKG_BUILD_DIR)/.quilt_used" ] || { \
+ echo "The source directory was not unpacked using quilt. Please rebuild with QUILT=1"; \
+ false; \
+ }