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# 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
CXXFLAGS += -isysteminclude -I../lib -Drestrict=__restrict__

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

.SUFFIXES: .s .S .c .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 $@ $^

# Test rules
TEST_CXX := c++
GTEST    := $(shell pkg-config --cflags --libs gtest gtest_main)
GMOCK    := $(shell pkg-config --cflags --libs gmock)

tst/test_%: tst/%.cc
	@echo '  CXX  TEST  $@'
	@$(TEST_CXX) $< -o $@ $(GTEST) $(GMOCK)

.PHONY: test valgrind
test: $(TESTS)
	$(foreach f,$^,./$f;)

valgrind: $(TESTS)
	$(foreach f,$^,valgrind --leak-check=full ./$f;)


# clean target
.PHONY: clean FORCE
clean:
	@$(foreach V,$(filter %.OBJS, ${.VARIABLES}), rm -rf $($(V)))
	@rm -rf include
	@rm -rf tst/test_*

FORCE: