### -*-makefile-*-

.SECONDEXPANSION: #sorry
all::

CROSSDIR		:= $(shell pwd)

FLAVOURS		+= linux-cross
linux-cross_ARCHS	 = linux-armel linux-armhf linux-arm64
linux-armel_ARCH	 = arm-linux-gnueabi
linux-armhf_ARCH	 = arm-linux-gnueabihf
linux-arm64_ARCH	 = aarch64-linux-gnu

FLAVOURS		+= linux-native
linux-native_ARCHS	 = linux-i386 linux-amd64
linux-i386_ARCH		 = i686-linux-gnu
linux-amd64_ARCH	 = x86_64-linux-gnu

FLAVOURS		+= android-cross
android-cross_ARCHS	 = android-arm android-arm64 android-x86 android-x86_64
android-arm_ARCH	 = arm-linux-androideabi
android-arm64_ARCH	 = aarch64-linux-android
android-x86_ARCH	 = i686-linux-android
android-x86_64_ARCH	 = x86_64-linux-android

CONFIG_VARS		+= FLAVOURS
CONFIG_VARS		+= $(foreach f,$(FLAVOURS), $f_ARCHS)

V			 = 0
v_tag			 = $(call v_tag_$V,$1)
v_tag_0			 = @printf "  %-8s %s\n" "$1" "$@";
V_AT			 = $(V_AT_$V)
V_AT_0			 = @

define define-setup
SETUPS			+= etc/$2-setup.sh
$2_FLAVOUR		 = $1
endef
$(foreach f,$(FLAVOURS), \
	$(foreach a,$($f_ARCHS), \
		$(eval $(call define-setup,$f,$a))))

TARGETS			+= $(SETUPS)
setup-flavour		 = $($1_FLAVOUR)

$(SETUPS): etc/%-setup.sh: $$(call setup-flavour,$$*)-setup.sh.in Makefile
	$(V_AT)mkdir -p $(dir $@)
	$(call v_tag,SED)sed 's/@arch@/$($*_ARCH)/g' $< >$@.new && \
		mv $@.new $@

SCRIPTS			 = mdw-cross crosstool cross-run
BINSCRIPTS		 = $(addprefix bin/,$(SCRIPTS))
TARGETS			+= $(BINSCRIPTS)
$(BINSCRIPTS): bin/%: src/%.in
	$(V_AT)mkdir -p $(dir $@)
	$(call v_tag,SED)sed 's@crossdir@$(CROSSDIR)' $< >$@.new && \
		chmod +x $@.new && mv $@.new $@

fix			 = $(subst -,_,$1)
quote			 = '$(subst ','\'',$1)'#'

TARGETS			+= etc/config.sh
etc/config.sh: Makefile
	$(V_AT)mkdir -p $(dir $@)
	$(call v_tag,GEN){ \
		echo '### -*-sh-*- GENERATED by mdw-cross/Makefile'; \
		$(foreach v,$(CONFIG_VARS), \
			echo $(call fix,$v)=$(call quote,$(call quote,$($v)));) \
	} >$@.new && mv $@.new $@

all:: $(TARGETS)

CLEANFILES		+= $(TARGETS)
clean::; rm -f $(CLEANFILES)

run-program = exec 8>&1 && rc=$$( exec 7>&1 && \
	{ exec 9>&1 && \
	  { ($1 9>&-; echo $$? >&7) | \
		while IFS= read -r line; \
		do printf >&9 "%-21s | %s\n" "$2" "$$line"; done; } 2>&1 | \
	  while IFS= read -r line; \
	  do printf >&9 "%-21s * %s\n" "$2" "$$line"; done; } | cat >&8 ) && \
	exit $$rc

run: $(addprefix run/,$(ARCHS))
$(addprefix run/,$(ARCHS)): run/%:
	@cd $(DIR) && \
	$(call run-program,$(CROSSDIR)/bin/mdw-cross $* $(ARGS),$*)
.PHONY: run $(addprefix run/,$(ARCHS))

run-make: $(addprefix run-make/,$(ARCHS))
$(addprefix run-make/,$(ARCHS)): run-make/%:
	@+$(call run-program,$(CROSSDIR)/bin/mdw-cross $* $(MAKE) -C$(DIR) $(ARGS),$*)
.PHONY: run-make $(addprefix run-make/,$(ARCHS))

show:; : $(VAR)