MODULEFLAGS = -fPIC -fno-stack-protector

 MODULEOBJS = dual_control.o logging.o dc_syslog.o
 HEADERS = logging.h dc_syslog.h

 MODULELIB = pam_dual_control.so

 UNAME_S := $(shell uname -s)

 .PHONY: all

 all: dual_control.a

 dual_control.a: $(MODULEOBJS)
 	ar rvs $@ $^

 	ranlib $@
 

 $(MODULEOBJS): %.o: %.c $(HEADERS)

 	$(CC) -c $(CFLAGS) $(CPPFLAGS) $(MODULEFLAGS) $< -o $@
 
 .PHONY: clean

 clean:

 	@rm -f *.o *.a
 	@rm -f dual_control_test

 .PHONY: distclean
 distclean: clean

 	@rm -f Makefile config.h

 dual_control_test: dual_control_test.c dual_control.o

 	$(CC) $(CFLAGS) $(CPPFLAGS) -lpam -o $@ $^

 logging_test: logging_test.c logging.o
 	$(CC) $(CFLAGS) $(CPPFLAGS) -lpam -o $@ $^

 .PHONY: test

 test: dual_control_test logging_test

 	@./dual_control_test
 	@./logging_test
 	@echo all tests passed

 .PHONY: install
 install: $(MODULEOBJS)

 ifeq ($(UNAME_S), Linux)

 	ld $(LDFLAGS) -x --shared -lpam -o $(DESTDIR)@PAM_MODULE_DIRECTORY@/$(MODULELIB) $(MODULEOBJS)

 else
 	@echo installation recipe not known for $(UNAME_S)
 endif