# ===========================================================================

 # crosstool-NG configuration targets

 # These targets are used from top-level makefile

 # Derive the project version from, well, the project version:

 export PROJECTVERSION=$(CT_VERSION)

 #-----------------------------------------------------------

 # Some static /configuration/

 # The place where the kconfig stuff lies

 obj = kconfig

 #-----------------------------------------------------------

 # The configurators rules

 PHONY += oldconfig menuconfig defoldconfig

 menuconfig: $(obj)/mconf config_files

 	@$(ECHO) "  MCONF $(KCONFIG_TOP)"

 	$(SILENT)$< $(KCONFIG_TOP)

 oldconfig: $(obj)/conf .config config_files

 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"

 	$(SILENT)$< -s $(KCONFIG_TOP)

 defoldconfig: $(obj)/conf .config config_files

 	@$(ECHO) "  CONF  $(KCONFIG_TOP)"

 	$(SILENT)yes "" |$< -s $(KCONFIG_TOP)

 #-----------------------------------------------------------

 # Help text used by make help

 help-config::

 	@echo  '  menuconfig         - Update current config using a menu based program'

 	@echo  '  oldconfig          - Update current config using a provided .config as base'

 	@echo  '  defoldconfig       - As oldconfig, above, but using defaults for new options'

 #-----------------------------------------------------------

 # Hmmm! Cheesy build!

 # Or: where I can unveil my make-fu... :-]

 # Oh! Files not here are there, in fact! :-)

 vpath %.c $(CT_LIB_DIR)

 vpath %.h $(CT_LIB_DIR)

 # What is the compiler?

 HOST_CC ?= gcc -funsigned-char

 # Compiler flags to use gettext

 EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/check-gettext.sh $(HOST_CC) $(CFLAGS))

 # Compiler and linker flags to use ncurses

 EXTRA_CFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ccflags)

 EXTRA_LDFLAGS += $(shell $(SHELL) $(CT_LIB_DIR)/kconfig/lxdialog/check-lxdialog.sh -ldflags $(HOST_CC))

 # Common source files, and lxdialog source files

 SRC = kconfig/zconf.tab.c

 LXSRC = $(patsubst $(CT_LIB_DIR)/%,%,$(wildcard $(CT_LIB_DIR)/kconfig/lxdialog/*.c))

 # What's needed to build 'conf'

 conf_SRC  = $(SRC) kconfig/conf.c

 conf_OBJ  = $(patsubst %.c,%.o,$(conf_SRC))

 # What's needed to build 'mconf'

 mconf_SRC = $(SRC) $(LXSRC) kconfig/mconf.c

 mconf_OBJ = $(patsubst %.c,%.o,$(mconf_SRC))

 # Cheesy auto-dependencies

 DEPS = $(patsubst %.c,%.dep,$(sort $(conf_SRC) $(mconf_SRC)))

 -include $(DEPS)

 # This is not very nice, as they will get rebuild even if (dist)cleaning... :-(

 # Should look into the Linux kernel Kbuild to see how they do that...

 # To really make me look into this, keep the annoying "DEP xxx" messages.

 # Also see the comment for the "%.o: %c" rule below

 %.dep: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk $(CT_NG)

 	$(SILENT)if [ ! -d $(obj)/lxdialog ]; then  \

 	   $(ECHO) "  MKDIR $(obj)";           \

 	   mkdir -p $(obj)/lxdialog;        \

 	 fi

 	@$(ECHO) "  DEP   $@"

 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -MM $< |sed -r -e 's|([^:]+.o)( *:+)|$(<:.c=.o) $@\2|;' >$@

 # Each .o must depend on the corresponding .c (obvious, isn't it?),

 # but *can not* depend on kconfig/, because kconfig can be touched

 # during the build (who's touching it, btw?) so each .o would be

 # re-built when they sould not be.

 # So manually check for presence of $(obj) (ie. kconfig), and only mkdir

 # if needed. After all, that's not so bad...

 # mkdir $(obj)/lxdialog, because we need it, and incidentally, that

 # also creates $(obj).

 # Also rebuild the object files is the makefile is changed

 %.o: %.c $(CT_LIB_DIR)/kconfig/kconfig.mk

 	$(SILENT)if [ ! -d $(obj)/lxdialog ]; then  \

 	   $(ECHO) "  MKDIR $(obj)";           \

 	   mkdir -p $(obj)/lxdialog;        \

 	 fi

 	@$(ECHO) "  CC    $@"

 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) -o $@ -c $<

 $(obj)/mconf: $(mconf_OBJ)

 	@$(ECHO) '  LD    $@'

 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^

 $(obj)/conf: $(conf_OBJ)

 	@$(ECHO) '  LD    $@'

 	$(SILENT)$(HOST_CC) $(CFLAGS) $(EXTRA_CFLAGS) $(LDFLAGS) $(EXTRA_LDFLAGS) -o $@ $^

 #-----------------------------------------------------------

 # Cleaning up the mess...

 clean::

 	@$(ECHO) "  CLEAN kconfig"

 	$(SILENT)rm -f kconfig/{,m}conf $(conf_OBJ) $(mconf_OBJ) $(DEPS)

 	$(SILENT)rmdir --ignore-fail-on-non-empty kconfig{/lxdialog,} 2>/dev/null || true