makefile多文件编译

makefile没有后缀，大小写都可以，下面是例子

 # compile macro  
 CC = g++  
 CFLAGS  = -O3 -Wall -mfpu=neon
 LDFLAGS = -lm  
 INCLUDES= -I/usr/local/include -I/usr/include 
 
 LIBS = $(SUBLIBS) /usr/local/lib/libopencv_highgui.so /usr/local/lib/libopencv_core.so /usr/local/lib/libopencv_imgproc.so /usr/local/lib/libopencv_video.so -lopencv_imgcodecs -lstdc++ -lfftw3 -lfftw3f -lGLESv2 -lpthread 
 # user modify: target and objects  
 EXENAME = test  
 OBJECTS = main.o \
 aaaaaa.o \
 bbbbbbbb.o
 
 # make target  
 all:${OBJECTS}  
 ${CC} -o ${EXENAME} *.o ${LDFLAGS} ${INCLUDES} ${LIBS}   
 
 # make clean  
 clean:  
 rm -rf ${EXENAME} ${OBJECTS}   
 
 # dependence 
 %.o : %.cpp  
 ${CC} ${CFLAGS} ${INCLUDES} -c $< -o $@
 %.o : %.cc  
 ${CC} ${CFLAGS} ${INCLUDES} -c $< -o $@

注意：

INCLUDES 的每一项都需要加 -I,否则会报错，例如下面的：

 INCLUDES= -I/usr/local/include -I/usr/include 

异常：

SSE2NEON.h:120:16: error: 'vst1q_f32' was not declared in this scope
  vst1q_f32(p, a);

解决：
 CFLAGS  = -mfpu=neon

异常：
fhog.cpp:(.text+0x350a): undefined reference to `cv::Mat::copyTo(cv::_OutputArray const&) const'

simpletracker.cpp:(.text+0x1d1e): undefined reference to `fftwf_execute'

解决：
${LIBS}

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/61615926