UNAME_S := $(shell uname -s)
ifeq ($(UNAME_S),Darwin)
    # LLVM stupidity: PGO flags, filenames, and process are all incompatible with GCC
    CC := /opt/local/bin/gcc-mp-12
endif

GFLAGS += -Wall -Wno-unused -g
OFLAGS += $(GFLAGS) -O3 -DNDEBUG -DTYPECODES=1 -DDELOPT=1 -Wno-array-bounds
PFLAGS += $(OFLAGS) -pg
CFLAGS += -D_GNU_SOURCE -I/opt/local/include
LDLIBS += -L/opt/local/lib
LDLIBS += -lgc -lm -lffi

MAIN = minproto

all : $(MAIN)

% : %.c %.grammar
	$(CC) $(GFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)

%-opt : %.c
	$(CC) $(OFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)

%-prof : %.c
	$(CC) $(PFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)

%.c : %.leg
	leg -o $@ $<

%.grammar : %.leg
	( sed "/%{/,/%}/d" $< | sed "/%%/,\$$d" ) > $@

tests : .FORCE
	$(MAKE) clean all GFLAGS="-Wno-unused -g -DTYPECODES=1 -DELOPT=1"
	-./$(MAIN) test.txt > test.out 2>&1
	@diff test.ref test.out && echo '\012--- PASSED ---'
	$(MAKE) clean all GFLAGS="-Wno-unused -g -DTYPECODES=0 -DELOPT=0"
	-./$(MAIN) test.txt > test.out 2>&1
	@diff test.ref test.out && echo '\012--- PASSED ---'

test : $(MAIN)
	./$(MAIN) test.txt 2>&1 | tee test.out
	@diff test.ref test.out && echo '\012--- PASSED ---'

testref : $(MAIN)
	./$(MAIN) test.txt 2>&1 | tee test.ref

bench : $(MAIN)-opt
	time ./$(MAIN)-opt -O bench.txt
	time ./$(MAIN)-opt -O bench.txt
	time ./$(MAIN)-opt -O bench.txt

sieve : $(MAIN)-opt
	time ./$(MAIN)-opt -O bench-sieve.txt
	time ./$(MAIN)-opt -O bench-sieve.txt
	time ./$(MAIN)-opt -O bench-sieve.txt

profile : $(MAIN)-prof
	./$(MAIN)-prof -O < bench.txt
	gprof ./$(MAIN)-prof gmon.out

release : .FORCE
	rm -f *.gcda
	$(MAKE) clean all GFLAGS="-DNDEBUG -DTYPECODES=1 -DDELOPT=1 -DPROFILE=1 -O3 -fprofile-correction -fprofile-generate"
	./$(MAIN) -O profile-generate.txt profile-generate.txt profile-generate.txt profile-generate.txt
	$(MAKE) clean all GFLAGS="-DNDEBUG -DTYPECODES=1 -DDELOPT=1 -DPROFILE=1 -O3 -fprofile-correction -fprofile-use"
	./$(MAIN) -O profile-generate.txt

FILES = Makefile $(MAIN).leg bench.txt test.txt test2.txt

checkpoint : .FORCE
	tar cvfz ckpt/minproto-$(shell date "+%Y%m%d-%H%M%S").tgz $(FILES)

clean : .FORCE
	rm -rf $(MAIN) $(MAIN)-opt $(MAIN)-prof *.o *.dSYM *.sync-conflict-*

spotless : clean
	rm -f *~

stats : .FORCE
	@echo $(shell tr -d ' \t\\' < minproto.leg | sort -u | wc -l) lines of code

.FORCE :