Makefile: Add silent-rules machinery for completely silent actions.

[mdw-cross] / Makefile

### -*-makefile-*-

.SECONDEXPANSION: #sorry
all::

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

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
	$(call v_tag,GEN)sed 's/@arch@/$($*_ARCH)/g' $< >$@.new && mv $@.new $@

all:: $(TARGETS)

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

show:; : $(VAR)