CFLAGS += -g -D$(shell uname | tr a-z A-Z)
SOURCES := parser_proc.c parser.c lexer.c validator.c compiler.c main.c
MAKEHEADERS := $(addsuffix .[ch], $(basename $(SOURCES)))

GENERATED_FILES := $(addsuffix .h, $(basename $(SOURCES)))

.PHONY: all
all: headers main

GENERATED_FILES += lempar.c
lempar.c:
	curl -sSo $@ "http://www.sqlite.org/src/raw/tool/lempar.c?name=3617143ddb9b176c3605defe6a9c798793280120"

GENERATED_FILES += lemon.c
lemon.c:
	curl -sSo $@ "http://www.sqlite.org/src/raw/tool/lemon.c?name=039f813b520b9395740c52f9cbf36c90b5d8df03"

GENERATED_FILES += lemon
lemon: lemon.c | lempar.c

GENERATED_FILES += main
main: $(SOURCES)

GENERATED_FILES += parser_proc.c
parser_proc.c: parser_proc.y lemon
	./lemon -c $@

GENERATED_FILES += lexer.c
lexer.c: lexer.re
	re2c -o $@ $<

.PHONY: clean
clean:
	-echo rm -f $(GENERATED_FILES)