# for each target.SRCS, generate target.OBJS, target.a and add target.OBJS to all
$(foreach V,$(filter %.SRCS, ${.VARIABLES}),\
	$(eval $(V:%.SRCS=%.OBJS) += $(foreach f,$($(V)),$(addsuffix .o,$(basename $(f))))) \
	$(eval $(V:%.SRCS=%.a): $($(V:%.SRCS=%.OBJS))) \
	$(eval all: $($(V:%.SRCS=%.OBJS))) \
)

# extra flags
CFLAGS   += -isysteminclude -I../lib \
	    -Werror=implicit-function-declaration
CXXFLAGS += -isysteminclude -I../lib -Drestrict=__restrict__ \
	    -Werror=shadow

# Suffix rules
.SUFFIXES: .s .S .c .cpp .o
%.a:
	@echo '  AR   $@'
	@${AR} ${ARFLAGS} $@ $(filter %.o,$^)

.s.o:
	@echo '  AS   $^'
	@$(AS) $(ASFLAGS) -c -o $@ $^

.S.o:
	@echo '  CC   $^'
	@$(CC) $(CFLAGS) -c -o $@ $^

.c.o:
	@echo '  CC   $^'
	@$(CC) $(CFLAGS) -c -o $@ $^

.cpp.o:
	@echo '  CXX  $^'
	@$(CXX) $(CXXFLAGS) -c -o $@ $^

%.elf:
	@echo '  LD   $@'
	@${LD} ${LDFLAGS} -o $@ $^
	@echo -n '  B2b  '
	@b2sum $@ | cut -d' ' -f1

# test rules
tst/test_%: tst/%.cc
	@echo '  CXX  TEST  $@'
	@$(TEST_CXX) $(TEST_CXXFLAGS) $< -o $@

.PHONY: test.base valgrind.base clean.base FORCE
test.base: $(TESTS)
	@echo " -> Running tests in $(shell pwd | xargs basename)"
	@$(foreach f,$^,echo " -> $f"; ./$f &&) echo "Done"

valgrind.base: $(TESTS)
	@echo " -> Running valgrind on tests in $(shell pwd | xargs basename)"
	@$(foreach f,$^,echo " -> $f"; valgrind --leak-check=full ./$f;)

clean.base: FORCE
	@echo " -> Cleaning $(shell pwd | xargs basename)"
	@$(foreach V,$(filter %.OBJS, ${.VARIABLES}), rm -rf $($(V)))
	@rm -rf *.a
	@rm -rf include
	@rm -rf tst/test_*

%: %.base ;

FORCE: ;