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# SPDX-License-Identifier: GPL-2.0
# scripts/dtc makefile
hostprogs-$(CONFIG_DTC) := dtc
always := $(hostprogs-y)
dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
srcpos.o checks.o util.o
dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
# Source files need to get at the userspace version of libfdt_env.h to compile
HOST_EXTRACFLAGS := -I $(srctree)/$(src)/libfdt
ifeq ($(wildcard /usr/include/yaml.h),)
ifneq ($(CHECK_DTBS),)
$(error dtc needs libyaml for DT schema validation support. \
Install the necessary libyaml development package.)
endif
HOST_EXTRACFLAGS += -DNO_YAML
else
dtc-objs += yamltree.o
HOSTLDLIBS_dtc := -lyaml
endif
# Generated files need one more search path to include headers in source tree
HOSTCFLAGS_dtc-lexer.lex.o := -I $(srctree)/$(src)
HOSTCFLAGS_dtc-parser.tab.o := -I $(srctree)/$(src)
# dependencies on generated files need to be listed explicitly
$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
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