bindir ?= /usr/bin

# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r

override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I include

ALL_PROGRAMS := intel-speed-select

all: $(ALL_PROGRAMS)

OBJ = isst-config.o isst-core.o isst-display.o

%.o: %.c
	$(CC) -c -o $@ $< $(CFLAGS)

intel-speed-select: isst-config.o isst-core.o isst-display.o
	$(CC) -o $@ $^ $(CFLAGS)

clean:
	rm -f $(ALL_PROGRAMS)
	rm -rf include/linux/isst_if.h
	find . -name '*.o' -delete -o -name '\.*.d' -delete

install: $(ALL_PROGRAMS)
	install -d -m 755 $(DESTDIR)$(bindir);		\
	for program in $(ALL_PROGRAMS); do		\
		install $$program $(DESTDIR)$(bindir);	\
	done

FORCE:

.PHONY: all install clean