+SRCS := $(OBJS:.o=.c) $(ASM_OBJS:.o=.S) $(CPP_OBJS:.o=.cpp)
+OBJS := $(OBJS) $(ASM_OBJS) $(CPP_OBJS)
+
+SRCS := $(addprefix $(SUBDIR),$(SRCS))
+OBJS := $(addprefix $(SUBDIR),$(OBJS))
+TESTS := $(addprefix $(SUBDIR),$(TESTS))
+
+DEP_LIBS:=$(foreach NAME,$(FFLIBS),lib$(NAME)/$($(BUILD_SHARED:yes=S)LIBNAME))
+
+ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h))
+checkheaders: $(filter-out %_template.ho,$(ALLHEADERS:.h=.ho))
+
+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 $$@ $$^
+
+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)