From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 3 Nov 2017 15:08:12 +0000 (+0100)
Subject: build: fix another regression in append-dtb fix
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c6f71ad30b768266a8fcc42af719881e93739365;p=openwrt%2Fstaging%2Fluka.git

build: fix another regression in append-dtb fix

Filter out duplicate generated code for the same dts files

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/include/image.mk b/include/image.mk
index 2d7b1ef998..96a8892115 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -437,10 +437,14 @@ endef
 
 ifndef IB
 define Device/Build/dtb
+  ifndef BUILD_DTS_$(1)
+  BUILD_DTS_$(1) := 1
   $(KDIR)/image-$(1).dtb: FORCE
 	$(call Image/BuildDTB,$(strip $(2))/$(1).dts,$$@)
 
   image_prepare: $(KDIR)/image-$(1).dtb
+  endif
+
 endef
 endif