update makefile.

datalink814_ge/build/src/util/subdir.mk

@@ -3,17 +3,13 @@
 ################################################################################
 
 # Add inputs and outputs from these tool invocations to the build variables 
-C_SRCS += \
-../src/util/crc.c \
-../src/util/util.c 
+UTIL_SRC := $(wildcard ../src/util/*.c)
 
-OBJS += \
-./src/util/crc.o \
-./src/util/util.o 
+C_SRCS += $(UTIL_SRC)
 
-C_DEPS += \
-./src/util/crc.d \
-./src/util/util.d 
+OBJS += $(patsubst ../src/util/%.c, ./src/util/%.o, $(UTIL_SRC))
+
+C_DEPS += $(patsubst ../src/util/%.c, ./src/util/%.d, $(UTIL_SRC))
 
 
 # Each subdirectory must supply rules for building sources it contributes