xref: /openbmc/linux/scripts/dtc/Makefile (revision 023e4163)
1# SPDX-License-Identifier: GPL-2.0
2# scripts/dtc makefile
3
4hostprogs-$(CONFIG_DTC) := dtc
5always		:= $(hostprogs-y)
6
7dtc-objs	:= dtc.o flattree.o fstree.o data.o livetree.o treesource.o \
8		   srcpos.o checks.o util.o
9dtc-objs	+= dtc-lexer.lex.o dtc-parser.tab.o
10
11# Source files need to get at the userspace version of libfdt_env.h to compile
12HOST_EXTRACFLAGS := -I$(src)/libfdt
13
14ifeq ($(wildcard /usr/include/yaml.h),)
15ifneq ($(CHECK_DTBS),)
16$(error dtc needs libyaml for DT schema validation support. \
17	Install the necessary libyaml development package.)
18endif
19HOST_EXTRACFLAGS += -DNO_YAML
20else
21dtc-objs	+= yamltree.o
22HOSTLDLIBS_dtc	:= -lyaml
23endif
24
25# Generated files need one more search path to include headers in source tree
26HOSTCFLAGS_dtc-lexer.lex.o := -I$(src)
27HOSTCFLAGS_dtc-parser.tab.o := -I$(src)
28
29# dependencies on generated files need to be listed explicitly
30$(obj)/dtc-lexer.lex.o: $(obj)/dtc-parser.tab.h
31