# SPDX-License-Identifier: GPL-2.0

  # scripts/dtc makefile

  hostprogs-always-$(CONFIG_DTC)		+= dtc
  hostprogs-always-$(CHECK_DT_BINDING)	+= dtc

  
  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 ($(shell pkg-config --exists yaml-0.1 2>/dev/null && echo yes),)

  ifneq ($(CHECK_DT_BINDING)$(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

  # To include <yaml.h> installed in a non-default path
  HOSTCFLAGS_yamltree.o := $(shell pkg-config --cflags yaml-0.1)
  # To link libyaml installed in a non-default path

  HOSTLDLIBS_dtc	:= $(shell pkg-config yaml-0.1 --libs)

  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