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