CFLAGS+=-O3 -Wall -fPIE -fno-strict-aliasing
CFLAGS+=-Wformat -Wformat=2 -Wconversion -Wimplicit-fallthrough
CFLAGS+=-Werror=format-security -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3
CFLAGS+=-fstack-clash-protection -fstack-protector-strong
CFLAGS+=-fstrict-flex-arrays=3

LDFLAGS=-lutil
LDFLAGS+=-Wl,-O3,--sort-common,--as-needed,-z,relro,-z,now,--strip-all -pie
LDFLAGS+=-Wl,-z,nodlopen -Wl,-z,noexecstack,--no-copy-dt-needed-entries

BTREE=btest
BTREE_OBJS=btest.o bcompare.o

BPROMPT=bprompt
BPROMPT_OBJS=bprompt.o bcompare.o
BPROMPT_LEX=lex.yy.c
BPROMPT_YACC=y.tab.c
.PHONY: clean 

.MAIN: clean $(BPROMPT) $(BTREE)

$(BTREE): $(BTREE_OBJS)
	$(CC) -o ${.TARGET} ${.ALLSRC} $(LDFLAGS)

$(BPROMPT_LEX): gram.l
	lex ${.ALLSRC}

$(BPROMPT_YACC): parse.y 
	yacc -d ${.ALLSRC}

$(BPROMPT): $(BPROMPT_OBJS) $(BPROMPT_LEX) $(BPROMPT_YACC)
	$(CC) -o ${.TARGET} ${.ALLSRC} -O3 -fPIE $(LDFLAGS)

SUFFIXES: .c .o
.c.o:
	$(CC) -o ${.TARGET} $(CFLAGS) -c ${.IMPSRC}

clean:
	rm -f *.o $(BTREE) ${BPROMPT} $(BPROMPT_YACC) $(BPROMPT_LEX)