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# SPDX-License-Identifier: GPL-2.0-only
# ===========================================================================
# OpenWrt configuration targets
.PHONY: clean all
all: conf mconf
clean:
rm -f *.o lxdialog/*.o *.moc .*.cmd $(clean-files)
# This clean-files definition is here to ensure that temporary files from the
# previous version are removed by make config-clean.
# It should be emptied after the end of support for OpenWrt 19.07.
clean-files := zconf.tab.c zconf.lex.c zconf.hash.c .tmp_qtcheck
# ===========================================================================
# Variables needed by the upstream Makefile
# Avoids displaying 'UPD mconf-cfg' in an otherwise quiet make menuconfig
kecho:=true
CONFIG_SHELL:=$(SHELL)
srctree:=.
src:=.
obj:=.
Q:=$(if $V,,@)
cmd = $(cmd_$(1))
# some definitions taken from ../Kbuild.include
dot-target = $(dir $@).$(notdir $@)
squote := '
escsq = $(subst $(squote),'\$(squote)',$1)
define filechk
$(Q)set -e; \
mkdir -p $(dir $@); \
trap "rm -f $(dot-target).tmp" EXIT; \
{ $(filechk_$(1)); } > $(dot-target).tmp; \
if [ ! -r $@ ] || ! cmp -s $@ $(dot-target).tmp; then \
$(kecho) ' UPD $@'; \
mv -f $(dot-target).tmp $@; \
fi
endef
cmd-check = $(if $(strip $(cmd_$@)),,1)
make-cmd = $(call escsq,$(subst $(pound),$$(pound),$(subst $$,$$$$,$(cmd_$(1)))))
newer-prereqs = $(filter-out $(PHONY),$?)
if_changed = $(if $(newer-prereqs)$(cmd-check), \
$(cmd); \
printf '%s\n' 'cmd_$@ := $(make-cmd)' > $(dot-target).cmd, @:)
### Stripped down upstream Makefile follows:
# ===========================================================================
# object files used by all kconfig flavours
common-objs := confdata.o expr.o lexer.lex.o menu.o parser.tab.o \
preprocess.o symbol.o util.o
$(obj)/lexer.lex.o: $(obj)/parser.tab.h
HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
# conf: Used for defconfig, oldconfig and related targets
hostprogs += conf
conf-objs := conf.o $(common-objs)
# nconf: Used for the nconfig target based on ncurses
hostprogs += nconf
nconf-objs := nconf.o nconf.gui.o $(common-objs)
HOSTLDLIBS_nconf = $(shell . $(obj)/nconf-cfg && echo $$libs)
HOSTCFLAGS_nconf.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
HOSTCFLAGS_nconf.gui.o = $(shell . $(obj)/nconf-cfg && echo $$cflags)
$(obj)/nconf.o $(obj)/nconf.gui.o: $(obj)/nconf-cfg
# 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 = $(shell . $(obj)/mconf-cfg && echo $$libs)
$(foreach f, mconf.o $(lxdialog), \
$(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
$(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
# qconf: Used for the xconfig target based on Qt
hostprogs += qconf
qconf-cxxobjs := qconf.o qconf-moc.o
qconf-objs := images.o $(common-objs)
HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
HOSTCXXFLAGS_qconf-moc.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
$(obj)/qconf.o: $(obj)/qconf-cfg
quiet_cmd_moc = MOC $@
cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) $< -o $@
$(obj)/qconf-moc.cc: $(src)/qconf.h $(obj)/qconf-cfg FORCE
$(call if_changed,moc)
targets += qconf-moc.cc
# check if necessary packages are available, and configure build flags
filechk_conf_cfg = $(CONFIG_SHELL) $<
$(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
$(call filechk,conf_cfg)
clean-files += *conf-cfg
# ===========================================================================
# OpenWrt rules and final adjustments that need to be made after reading the
# full upstream Makefile
clean-files += $(targets) $(hostprogs)
FORCE:
ifdef BUILD_SHIPPED_FILES
shipped-files := lexer.lex.c parser.tab.c parser.tab.h
clean-files += $(shipped-files)
.SECONDARY: $(shipped-files)
%.tab.c %.tab.h: %.y
bison -l -d -b $* $<
%.lex.c: %.l
flex -L -o$@ $<
endif
$(foreach f,$(conf-objs) $(filter-out $(common-objs),$(mconf-objs) \
$(qconf-objs) \
$(nconf-objs)), \
$(eval $(obj)/$f: CFLAGS+=$$(HOSTCFLAGS_$f)))
$(foreach f,$(qconf-cxxobjs), \
$(eval $(obj)/$f: CXXFLAGS+=$$(HOSTCXXFLAGS_$f)))
$(obj)/conf: $(addprefix $(obj)/,$(conf-objs))
# The *conf-cfg file is used (then filtered out) as the first prerequisite to
# avoid sourcing it before the script is built, when trying to compute CFLAGS
# for the actual first prerequisite. This avoids errors like:
# '/bin/sh: ./mconf-cfg: No such file or directory'
$(obj)/mconf: mconf-cfg $(addprefix $(obj)/,$(mconf-objs))
$(CC) -o $@ $(filter-out mconf-cfg,$^) $(HOSTLDLIBS_mconf)
$(obj)/nconf: nconf-cfg $(addprefix $(obj)/,$(nconf-objs))
$(CC) -o $@ $(filter-out nconf-cfg,$^) $(HOSTLDLIBS_nconf)
$(obj)/qconf: qconf-cfg $(addprefix $(obj)/,$(qconf-cxxobjs) $(qconf-objs))
$(CXX) -o $@ $(filter-out qconf-cfg,$^) $(HOSTLDLIBS_qconf)
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