1 # SPDX-License-Identifier: GPL-2.0
2 # ===========================================================================
3 # OpenWrt configuration targets
8 rm -f *.o lxdialog/*.o *.moc $(clean-files) conf mconf qconf
12 # ===========================================================================
13 # Variables needed by the upstream Makefile
15 # Avoids displaying 'UPD mconf-cfg' in an otherwise quiet make menuconfig
18 CONFIG_SHELL:=$(SHELL)
24 dot-target = $(dir $@).$(notdir $@)
26 # taken from ../Kbuild.include
30 trap "rm -f $(dot-target).tmp" EXIT; \
31 { $(filechk_$(1)); } > $(dot-target).tmp; \
32 if [ ! -r $@ ] || ! cmp -s $@ $(dot-target).tmp; then \
34 mv -f $(dot-target).tmp $@; \
38 ### Stripped down upstream Makefile follows:
39 # ===========================================================================
40 # object files used by all kconfig flavours
41 common-objs := confdata.o expr.o lexer.lex.o parser.tab.o preprocess.o \
44 $(obj)/lexer.lex.o: $(obj)/parser.tab.h
45 HOSTCFLAGS_lexer.lex.o := -I $(srctree)/$(src)
46 HOSTCFLAGS_parser.tab.o := -I $(srctree)/$(src)
48 # conf: Used for defconfig, oldconfig and related targets
50 conf-objs := conf.o $(common-objs)
52 # mconf: Used for the menuconfig target based on lxdialog
54 lxdialog := $(addprefix lxdialog/, \
55 checklist.o inputbox.o menubox.o textbox.o util.o yesno.o)
56 mconf-objs := mconf.o $(lxdialog) $(common-objs)
58 HOSTLDLIBS_mconf = $(shell . $(obj)/mconf-cfg && echo $$libs)
59 $(foreach f, mconf.o $(lxdialog), \
60 $(eval HOSTCFLAGS_$f = $$(shell . $(obj)/mconf-cfg && echo $$$$cflags)))
62 $(addprefix $(obj)/, mconf.o $(lxdialog)): $(obj)/mconf-cfg
64 # qconf: Used for the xconfig target based on Qt
66 qconf-cxxobjs := qconf.o
67 qconf-objs := images.o $(common-objs)
69 HOSTLDLIBS_qconf = $(shell . $(obj)/qconf-cfg && echo $$libs)
70 HOSTCXXFLAGS_qconf.o = $(shell . $(obj)/qconf-cfg && echo $$cflags)
72 $(obj)/qconf.o: $(obj)/qconf-cfg $(obj)/qconf.moc
74 quiet_cmd_moc = MOC $@
75 cmd_moc = $(shell . $(obj)/qconf-cfg && echo $$moc) -i $< -o $@
77 $(obj)/%.moc: $(src)/%.h $(obj)/qconf-cfg
80 # check if necessary packages are available, and configure build flags
81 filechk_conf_cfg = $(CONFIG_SHELL) $<
83 $(obj)/%conf-cfg: $(src)/%conf-cfg.sh FORCE
84 $(call filechk,conf_cfg)
86 clean-files += *conf-cfg
88 # ===========================================================================
89 # OpenWrt rules and final adjustments that need to be made after reading the
90 # full upstream Makefile
94 ifdef BUILD_SHIPPED_FILES
95 shipped-files := lexer.lex.c parser.tab.c parser.tab.h
96 clean-files += $(shipped-files)
98 .SECONDARY: $(shipped-files)
107 $(foreach f, mconf.o $(lxdialog), \
108 $(eval $f: CFLAGS+=$$(HOSTCFLAGS_$f)))
110 $(obj)/lexer.lex.o: CFLAGS += $(HOSTCFLAGS_lexer.lex.o)
111 $(obj)/parser.tab.o: CFLAGS += $(HOSTCFLAGS_parser.tab.o)
112 $(obj)/qconf.o: CXXFLAGS+=$(HOSTCXXFLAGS_qconf.o)
116 # The *conf-cfg file is used (then filtered out) as the first prerequisite to
117 # avoid sourcing it before the script is built, when trying to compute CFLAGS
118 # for the actual first prerequisite. This avoids errors like:
119 # '/bin/sh: ./mconf-cfg: No such file or directory'
120 mconf: mconf-cfg $(mconf-objs)
121 $(CC) -o $@ $(filter-out mconf-cfg,$^) $(HOSTLDLIBS_mconf)
123 qconf: qconf-cfg $(qconf-cxxobjs) $(qconf-objs)
124 $(CXX) -o $@ $(filter-out qconf-cfg,$^) $(HOSTLDLIBS_qconf)