关于Makefile的问题

#include ../../../common/make.config
# C compiler
CC = gcc
CC_FLAGS = -g -O3 -Wall -I$(MATRIX_DIR)
# CUDA compiler
CUDA_DIR=/usr/local/cuda-5.5
SDK_DIR=/usr/local/cuda-5.5/samples
NVCC = $(CUDA_DIR)/bin/nvcc
NVCC_FLAGS = -I$(CUDA_DIR)/include -I$(SDK_DIR)/common/inc
# Matrix library path
MATRIX_DIR =/home/niu/Documents/leukocyte/meschach_lib
# 'make dbg=1' enables NVCC debugging
ifeq ($(dbg),1)
NVCC_FLAGS += -g -O0 -lineinfo
else
NVCC_FLAGS += -O3 -lineinfo
#-maxrregcount=80
endif
# 'make emu=1' compiles the CUDA kernels for emulation
ifeq ($(emu),1)
NVCC_FLAGS += -deviceemu
endif
leukocyte: detect_main.o avilib.o find_ellipse.o find_ellipse_kernel.o track_ellipse.o track_ellipse_kernel.o misc_math.o $(MATRIX_DIR)/meschach.a
$(CC) $(CC_FLAGS) -lm avilib.o find_ellipse.o find_ellipse_kernel.o track_ellipse.o track_ellipse_kernel.o misc_math.o detect_main.o -o leukocyte $(MATRIX_DIR)/meschach.a -L$(CUDA_LIB_DIR) -lm -lcuda -L/usr/local/cuda-5.5/lib -lcudart
%.o: %.[ch]
$(CC) $(CC_FLAGS) $< -c
detect_main.o: detect_main.c find_ellipse.h track_ellipse.h avilib.h
$(CC) $(CC_FLAGS) detect_main.c -c
find_ellipse_kernel.o: find_ellipse_kernel.cu find_ellipse_kernel.h
$(NVCC) $(NVCC_FLAGS) -c find_ellipse_kernel.cu
track_ellipse_kernel.o: track_ellipse_kernel.cu track_ellipse_kernel.h
$(NVCC) $(NVCC_FLAGS) -I$(MATRIX_DIR) -c track_ellipse_kernel.cu
find_ellipse.o: avilib.h
track_ellipse.o: find_ellipse.h avilib.h
$(MATRIX_DIR)/meschach.a:
cd $(MATRIX_DIR); ./configure --with-all; make all; make clean
clean:#伪目标
rm -f *.o *~ leukocyte *.linkinfo