VERSION ?= $(shell git rev-parse --short HEAD)
PKG_CONFIG ?= pkg-config

all: poll_desfire

poll_desfire: poll_desfire.o nfc_init.o
	$(CC) $(LDFLAGS) $(shell $(PKG_CONFIG) --libs libfreefare) $^ -o $@

%.o: %.c
	$(CC) $(CFLAGS) -Wall -pedantic --std=c99 $(shell $(PKG_CONFIG) --cflags libfreefare) -g -O0 -D_POSIX_C_SOURCE=200809L -c $^ -o $@

clean:
	rm -f poll_desfire *.o

release: poll_desfire_v$(VERSION).tar.gz

poll_desfire_v$(VERSION).tar.gz: poll_desfire.c Makefile
	tar czf $@ --transform='s,^,poll_desfire_v$(VERSION)/,' $^

install: all
	install -D -m 0755 -t $(PREFIX)/bin/ poll_desfire

.PHONY: all clean release