ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/scripts/config/Makefile b/scripts/config/Makefile
new file mode 100644
index 0000000..5e7dd95
--- /dev/null
+++ b/scripts/config/Makefile
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# ===========================================================================
+# OpenWrt configuration targets
+
+.PHONY: clean all
+all: conf mconf
+clean:
+ rm -f $(clean-files) $(hostprogs)
+
+clean-files := *.o lxdialog/*.o *.moc qconf-moc.cc \
+ *conf-cfg # <- This should be removed after 23.05 is EOL
+
+# ===========================================================================
+# Variables needed by the upstream Makefile
+
+export HOSTPKG_CONFIG=pkg-config
+CONFIG_SHELL:=$(SHELL)
+src:=$(CURDIR)
+obj:=.
+Q:=$(if $V,,@)
+quiet:=$(if $V,,_silent)
+include Kbuild.include
+
+### Stripped down upstream Makefile follows:
+# ===========================================================================
+# object files used by all kconfig flavours
+common-objs := confdata.o expr.o lexer.lex.o menu.o parser.tab.o \
+ preprocess.o symbol.o util.o
+
+$(obj)/lexer.lex.o: $(obj)/parser.tab.h
+HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
+HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
+
+# conf: Used for defconfig, oldconfig and related targets
+hostprogs += conf
+conf-objs := conf.o $(common-objs)
+
+# nconf: Used for the nconfig target based on ncurses
+hostprogs += nconf
+nconf-objs := nconf.o nconf.gui.o $(common-objs)
+
+HOSTLDLIBS_nconf = $(call read-file, $(obj)/nconf-libs)
+HOSTCFLAGS_nconf.o = $(call read-file, $(obj)/nconf-cflags)
+HOSTCFLAGS_nconf.gui.o = $(call read-file, $(obj)/nconf-cflags)
+
+$(obj)/nconf: | $(obj)/nconf-libs
+$(obj)/nconf.o $(obj)/nconf.gui.o: | $(obj)/nconf-cflags
+
+# mconf: Used for the menuconfig target based on lxdialog
+hostprogs += mconf
+lxdialog := $(addprefix lxdialog/, \
+ checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
+mconf-objs := mconf.o $(lxdialog) $(common-objs)
+
+HOSTLDLIBS_mconf = $(call read-file, $(obj)/mconf-libs)
+$(foreach f, mconf.o $(lxdialog), \
+ $(eval HOSTCFLAGS_$f = $$(call read-file, $(obj)/mconf-cflags)))
+
+$(obj)/mconf: | $(obj)/mconf-libs
+$(addprefix $(obj)/, mconf.o $(lxdialog)): | $(obj)/mconf-cflags
+
+# qconf: Used for the xconfig target based on Qt
+hostprogs += qconf
+qconf-cxxobjs := qconf.o qconf-moc.o
+qconf-objs := images.o $(common-objs)
+
+HOSTLDLIBS_qconf = $(call read-file, $(obj)/qconf-libs)
+HOSTCXXFLAGS_qconf.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)
+HOSTCXXFLAGS_qconf-moc.o = -std=c++11 -fPIC $(call read-file, $(obj)/qconf-cflags)
+$(obj)/qconf: | $(obj)/qconf-libs
+$(obj)/qconf.o $(obj)/qconf-moc.o: | $(obj)/qconf-cflags
+
+quiet_cmd_moc = MOC $@
+ cmd_moc = $(call read-file, $(obj)/qconf-bin)/moc $< -o $@
+
+$(obj)/qconf-moc.cc: $(src)/qconf.h FORCE | $(obj)/qconf-bin
+ $(call if_changed,moc)
+
+targets += qconf-moc.cc
+
+# check if necessary packages are available, and configure build flags
+cmd_conf_cfg = $< $(addprefix $(obj)/$*conf-, cflags libs bin); touch $(obj)/$*conf-bin
+
+$(obj)/%conf-cflags $(obj)/%conf-libs $(obj)/%conf-bin: $(src)/%conf-cfg.sh
+ $(call cmd,conf_cfg)
+
+clean-files += *conf-cflags *conf-libs *conf-bin
+
+# ===========================================================================
+# OpenWrt rules and final adjustments that need to be made after reading the
+# full upstream Makefile
+
+FORCE:
+
+ifdef BUILD_SHIPPED_FILES
+shipped-files := lexer.lex.c parser.tab.c parser.tab.h
+clean-files += $(shipped-files)
+
+.SECONDARY: $(shipped-files)
+
+%.tab.c %.tab.h: %.y
+ bison -l -d -b $* $<
+
+%.lex.c: %.l
+ flex -L -o$@ $<
+endif
+
+define link_rule
+$(1): LDLIBS+=$$(HOSTLDLIBS_$(1))
+$(1): $($(1)-objs) $$($(1)-cxxobjs)
+$(if $($(1)-cxxobjs), $(CXX) $$(LDFLAGS) -o $$@ $$^ $$(LDLIBS))
+all-objs += $($(1)-objs)
+all-cxxobjs += $($(1)-cxxobjs)
+endef
+
+all-objs:=
+all-cxxobjs:=
+$(foreach f,$(hostprogs),$(eval $(call link_rule,$f)))
+
+
+$(foreach f,$(sort $(all-objs)), \
+ $(eval $f: CFLAGS+=$$(HOSTCFLAGS_$f)))
+
+$(foreach f,$(sort $(all-cxxobjs)), \
+ $(eval $f: CXXFLAGS+=$$(HOSTCXXFLAGS_$f)))