+DEPS := $(OBJS:.o=.d)
+depend dep: $(DEPS)
+
+CLEANSUFFIXES = *.o *~ *.ho
+LIBSUFFIXES = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a *.exp *.map
+DISTCLEANSUFFIXES = *.d *.pc
+
+define RULES
+$(SUBDIR)%$(EXESUF): $(SUBDIR)%.o
+ $(CC) $(FFLDFLAGS) -o $$@ $$^ $(SUBDIR)$(LIBNAME) $(FFEXTRALIBS)
+
+$(SUBDIR)%-test.o: $(SUBDIR)%.c
+ $(CC) $(CFLAGS) -DTEST -c -o $$@ $$^
+
+$(SUBDIR)%-test.o: $(SUBDIR)%-test.c
+ $(CC) $(CFLAGS) -DTEST -c -o $$@ $$^
+
+$(SUBDIR)x86/%.o: $(SUBDIR)x86/%.asm
+ $(YASM) $(YASMFLAGS) -I $$(<D)/ -o $$@ $$<
+
+$(SUBDIR)x86/%.d: $(SUBDIR)x86/%.asm
+ $(YASM) $(YASMFLAGS) -I $$(<D)/ -M -o $$(@:%.d=%.o) $$< > $$@
+
+clean::
+ rm -f $(TESTS) $(addprefix $(SUBDIR),$(CLEANFILES) $(CLEANSUFFIXES) $(LIBSUFFIXES)) \
+ $(addprefix $(SUBDIR), $(foreach suffix,$(CLEANSUFFIXES),$(addsuffix /$(suffix),$(DIRS))))
+
+distclean:: clean
+ rm -f $(addprefix $(SUBDIR),$(DISTCLEANSUFFIXES)) \
+ $(addprefix $(SUBDIR), $(foreach suffix,$(DISTCLEANSUFFIXES),$(addsuffix /$(suffix),$(DIRS))))
+endef
+
+$(eval $(RULES))
+
+tests: $(TESTS)
+
+-include $(DEPS)